Greene v. General Hospital Corp. , 794 F.3d 133 ( 2015 )


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  •           United States Court of Appeals
    For the First Circuit
    Nos. 13-2237, 13-2294, 13-2369
    ROSS W. GREENE,
    Plaintiff, Appellant, Cross-Appellee,
    THE CENTER FOR COLLABORATIVE PROBLEM SOLVING, INC.,
    Plaintiff,
    v.
    J. STUART ABLON,
    Defendant, Appellee, Cross-Appellant,
    GENERAL HOSPITAL CORPORATION,
    a/k/a Massachusetts General Hospital,
    Defendant, Appellee.
    APPEALS FROM THE UNITED STATES DISTRICT COURT
    FOR THE DISTRICT OF MASSACHUSETTS
    [Hon. Denise J. Casper, U.S. District Judge]
    Before
    Howard, Chief Judge,
    Lipez and Thompson, Circuit Judges.
    Mark S. Resnick, with whom The Resnick Law Group, P.C. was on
    brief, for appellant.
    Denis M. King, with whom Thomas J. Sartory and Goulston &
    Storrs PC were on brief, for appellees.
    July 16, 2015
    LIPEZ, Circuit Judge.            Dr. Ross W. Greene ("Greene")
    developed a method of treating children with explosive behaviors
    known   as   the    Collaborative   Problem      Solving   ("CPS")    Approach.
    Greene advanced this method through his work at the Massachusetts
    General Hospital ("MGH") Department of Psychiatry, his unaffiliated
    private practice, and workshops and publications, including a book
    he wrote himself called The Explosive Child and a book he co-
    authored     with   Dr.   J.   Stuart   Ablon    ("Ablon")   called    Treating
    Explosive Kids.       After a falling out with both MGH and Ablon,
    Greene brought suit alleging, inter alia, that MGH had infringed
    his CPS-related trademarks and that Ablon had infringed his CPS-
    related copyrights.       MGH counterclaimed for ownership of the marks
    and prevailed on summary judgment.             Greene appeals that ruling.
    The copyright claims present a more complicated scenario.
    The district court limited the scope of Greene's copyright claims
    by determining that the book he co-authored with Ablon, Treating
    Explosive Kids, was a joint work, but not a derivative work, under
    the Copyright Act.        Greene appeals that ruling, claiming that the
    court improperly circumscribed the evidence that he could present
    on his copyright infringement claim.              Greene's claim that Ablon
    created PowerPoint slides that infringed on his solo work, The
    Explosive Child, went to trial.                After a jury awarded Greene
    $19,000 on that claim, Greene moved for an accounting for profits
    Ablon derived from their joint work, Treating Explosive Kids, and
    -2-
    an injunction to prevent Ablon from further infringing on The
    Explosive Child -- remedies Greene had sought in his complaint and
    which the parties agreed would be submitted to the court after
    completion of the jury trial.          To contest the $19,000 jury award
    against him, Ablon moved for post-verdict relief.            The district
    court denied the various motions and both parties appeal.
    We agree with the district court's capable handling of
    this complex case in all respects except one: the court erred in
    ruling that a work cannot be both joint and derivative as a matter
    of law.    However, we conclude that Greene has not shown that the
    error improperly circumscribed his copyright claim.          We therefore
    affirm.
    I. The Trademark Dispute
    A. Factual Background
    1. The CPS Marks
    Greene is a psychologist who developed an alternative
    approach for the treatment of behaviorally challenging children.
    By 1993, with his method still developing, he began a sixteen-year
    employment relationship with MGH.          Throughout Greene's tenure at
    MGH, he continued to develop his method, including through studies
    he conducted at MGH.       He also continued to disseminate his method
    through,   among   other    outlets,    unaffiliated   workshops   and   his
    unaffiliated private practice.         The development of Greene's method
    culminated in his 1998 book, The Explosive Child: A New Approach
    -3-
    for Understanding and Parenting Easily Frustrated, Chronically
    Inflexible Children ("The Explosive Child").                    In 2001, Greene
    developed     two     service      marks1     to     identify     his     approach:
    "Collaborative Problem Solving" and "Collaborative Problem Solving
    Approach" (collectively, the "CPS Marks" or the "Marks").
    Between 2002 and 2003, Greene and his business partner,
    Ablon,     co-founded      three    organizations       devoted     to    the    CPS
    methodology, each making use of the CPS Marks.                     One of these
    organizations, the Collaborative Problem Solving Institute (the
    "Institute"),       was    an   MGH-affiliated       program    within     the   MGH
    Department of Psychiatry. The Institute relied on MGH's non-profit
    status to solicit tax deductible donations, which were placed in a
    "sundry    fund"    that    MGH    administered.       In   addition,      the   MGH
    Development    Office      assisted    with    the    Institute's       fundraising
    efforts.    Greene served as the Institute's Director and identified
    himself as such in numerous flyers, books, papers, and articles, as
    well as on stationery and the Institute website, which were branded
    with the MGH logo.
    The two other entities that Greene and Ablon founded, the
    CPS Clinic (the "Clinic") and the Center for Collaborative Problem
    Solving, Inc. (the "Center"), were Massachusetts sub-chapter S
    1
    "Service marks and trademarks function to identify the
    source of services and goods, respectively."     Int'l Ass'n of
    Machinists & Aerospace Workers, AFL-CIO v. Winship Green Nursing
    Ctr., 
    103 F.3d 196
    , 199 n.2 (1st Cir. 1996).
    -4-
    corporations.          The Clinic (which later merged with the Center,
    retaining the Center's name) shared space at MGH with the Institute
    and accepted referrals from it. However, the Clinic and the Center
    were private practices not formally affiliated with MGH.                    To wit,
    in an email during the planning stages of the Institute, the MGH
    Office       of    General    Counsel   acknowledged    that    Greene's     private
    practice and the Institute would share space and interact through
    referrals, but expressed a need to "mak[e] clear that the private
    practice is not associated or affiliated with MGH in any way."                   At
    all times, Greene has been the Center's President, and he and Ablon
    have been its sole and equal shareholders.
    In 2007, the Institute rebranded itself as Think:Kids and
    began        using    the    service    marks    "Think:Kids"    and   "Think:Kids
    Rethinking Challenging Kids" to identify its programming. Although
    the Think:Kids marks were affiliated with MGH, it was Greene and
    Ablon's unaffiliated Center that registered these marks with the
    U.S.        Patent   and    Trademark   Office    ("USPTO")     on   the   principal
    register.2
    Greene has also sought to register the CPS Marks with the
    USPTO.       Greene registered "Collaborative Problem Solving Approach"
    2
    In its Final Judgment and Declaration on MGH's summary
    judgment motion, the district court ordered the amendment of these
    registrations so as to make MGH the registrant instead of the
    Center.   Greene does not contest that ruling.    Therefore, this
    dispute only concerns the CPS Marks.
    -5-
    in his own name on the supplemental register3 on July 9, 2002,
    noting February 15, 2001 as the date of first use.         In 2008, about
    a year before this action began, he filed applications to register
    "The Collaborative Problem Solving Approach" and "Collaborative
    Problem Solving" on the principal register.        When MGH learned that
    Greene was seeking to register these marks in his own name, MGH
    filed oppositions to his applications.4
    2. Greene's Employment Contracts with MGH and the IP
    Policy
    Greene's tenure at MGH ran from July 1993 to January 2009
    and was the sum of ten consecutive appointments, each of which was
    six months to two years in length.        The process for obtaining each
    appointment was the same.
    First,   Greene   would    sign   and   submit   an   appointment
    application in which he agreed to abide by MGH's bylaws and
    3
    The supplemental register is a separate register for marks
    that are not yet eligible for registration on the principal
    register.   See 
    15 U.S.C. § 1091
    (a).     Marks registered on the
    supplemental register receive some but not all of the protections
    and legal advantages marks on the principal register receive. See
    How to Amend from the Principal to the Supplemental Register,
    USPTO, http://www.uspto.gov/trademarks/law/suppreg_ornamental.jsp
    (last modified Oct. 18, 2012).
    4
    A person "who believes that he would be damaged by the
    registration of a mark upon the principal register" may oppose
    another person's application to register that mark by filing an
    opposition "stating the grounds therefor" with the USPTO.    
    15 U.S.C. § 1063
    (a).
    -6-
    policies.5        Greene's    first      three   applications,    covering
    appointments from July 1, 1993 through December 31, 1996, stated,
    "I agree to abide by the Bylaws, rules, regulations and policies of
    the Professional Staff and of the Hospital."           (Emphasis added.)
    Greene's fourth and fifth applications, covering appointments from
    January 1, 1997 through November 4, 1999, stated, "I agree to read
    and abide by the Bylaws, rules, regulations and policies of the
    Professional    Staff   and   of   the   Hospital."   (Emphasis   added.)
    Finally, Greene's next (and last) five applications, covering
    appointments from November 5, 1999 through November 4, 2009,
    stated, "I have received and had an opportunity to read the Bylaws
    of the [Medical/]Professional Staff. I specifically agree to abide
    by all such bylaws and any policies and procedures that are
    applicable . . . ."     (Emphasis added.)
    In 2005 and 2007, as part of his final two applications,
    Greene also signed supplemental release forms, which stated, "I
    understand that the ownership and disposition of inventions and
    other intellectual property that I create during the time when I
    have my Professional Staff appointment shall be determined in
    accordance with the Intellectual Property Policy at the Hospital,
    a copy of which is . . . available at [URL]."
    5
    Section 2.01 of the bylaws (in force at all relevant times)
    required Staff Members to abide by "all applicable . . . policies
    of the Hospital."
    -7-
    After submitting his applications, Greene would receive
    a letter informing him that the MGH Board of Trustees had appointed
    him to his position for a particular term.      All eleven appointment
    letters6 stated, "Enclosed is the Professional Staff Appointment
    Form which reflects the terms and conditions of the appointment."
    All   eleven   Professional   Staff   Appointment   Forms   stated,   "In
    discharging the duties and exercising the privileges of your
    appointment, you are required to . . . [a]bide by the Bylaws,
    rules, regulations, and policies of the Professional Staff and the
    Hospital." (Emphasis added.) None of these forms state that MGH's
    policies might change from time to time.
    MGH first enacted its intellectual property ("IP") policy
    on April 21, 1995.   Consequently, MGH did not have an IP policy in
    place when Greene received his first three appointments in June
    1993, May 1994, and January 1995.       As enacted in 1995, the policy
    provided: "Trademarks shall be owned by MGH [1] if they are created
    by members in the course of their employment or affiliation with an
    Institution or [2] if they are used to identify any product or
    service originating with or associated with an Institution."
    MGH updated its IP policy on July 19, 2002.      In relevant
    part, the 2002 revisions added a third scenario in which MGH would
    6
    In February 1999, Greene was promoted from Clinical
    Assistant in Psychology to Assistant in Psychology. Hence, even
    though there were only ten applications, Greene actually received
    eleven appointment letters.
    -8-
    acquire ownership of a mark: "Trademarks shall be owned by [MGH] if
    they . . . [3] pertain to significant Institutional Activities,"
    defined     as     "any    activities   that      received    direct     or    indirect
    financial support from an Institution, including Institutional
    salary support or funding from any outside source awarded to or
    administered by an Institution."
    B. Procedural Background
    In     June    2009,    Greene    filed     a   complaint    in    federal
    district court alleging, inter alia, trademark infringement for
    MGH's use of the CPS Marks (Count X) and seeking, inter alia, a
    declaratory judgment as to Greene's ownership of the Marks (Count
    XII).       With    its    answer,    MGH    filed   a   counterclaim         seeking   a
    declaratory judgment that MGH owns the CPS Marks (Count 4).                         MGH
    also sought an order that Greene's registration of "Collaborative
    Problem Solving Approach" on the USPTO supplemental register be
    revoked and that Greene's 2008 applications to register the CPS
    Marks on the principal register be denied.                   MGH moved for summary
    judgment on Counts X and XII of Greene's complaint and on Count 4
    of the counterclaim.7           The district court granted MGH's motion,
    7
    Greene submitted an affidavit with his opposition to the
    motion for summary judgment that became the subject of a motion to
    strike and a motion for sanctions. The district court granted and
    allowed these motions, respectively.    As a result, portions of
    Greene's affidavit pertaining to an alleged oral agreement between
    Greene and MGH were stricken and Greene was precluded from relying
    on that agreement in his opposition to MGH's summary judgment
    motion.    Greene explicitly does not appeal those decisions.
    Therefore, we will evaluate the summary judgment motion without
    -9-
    holding that Greene was subject to the IP policy and that, on two
    independent grounds, MGH owned the CPS Marks.                  First, under the
    1995 and 2002 versions of the IP policy, the Marks were used to
    identify services associated with MGH, namely, the CPS Institute.
    Second,    under    the    2002   version    of    the   IP   policy,    the    Marks
    pertained to significant activities that received financial support
    from MGH as well as outside funding that MGH administered.                     Greene
    filed a timely appeal.
    C. Contract Defenses
    Greene does not dispute that the IP policy was broad
    enough to encompass the CPS Marks.                The long affiliation of the
    Marks     with     the    Institute,    and       the    Institute's     financial
    relationship with MGH, were enough to bring the Marks within the IP
    policy's scope.8          Rather, Greene raises a series of contract
    defenses, arguing that the employment agreements binding him to the
    IP   policy      were    either   voidable    or    unenforceable       because    of
    equitable estoppel, failure to reach a meeting of the minds, or
    regard to the stricken passages.
    8
    Greene argues that MGH waived any arguments predicated on
    the 1995 version of the IP policy; consequently, he argues, the
    district court erred when it held that he was subject to the 1995
    policy from, at latest, his 1997 appointment renewal.       Given
    Greene's admission that the 2002 Policy independently encompasses
    the Marks, we will assume, without deciding, that only the 2002
    version applies.   Thus, all references to "the IP policy" are
    references to the 2002 version.       That assumption makes no
    difference to the outcome of this appeal.
    -10-
    unilateral        mistake.           We   address   these    issues    in   turn.9
    1. Equitable Estoppel
    Greene contends that MGH is equitably estopped from
    enforcing the IP policy.              Equitable estoppel is appropriate only
    where failure to apply estoppel would result in injustice. Heckler
    v. Cmty. Health Servs., 
    467 U.S. 51
    , 59 (1984); Sullivan v. Chief
    Justice for Admin. & Mgmt. of Trial Ct., 
    858 N.E.2d 699
    , 711 (Mass.
    2006). Under Massachusetts law,10 an estoppel defense to a contract
    claim        consists   of:   "(1)    a   representation    intended   to   induce
    reliance on the part of a person to whom the representation is
    made; (2) an act or omission by that person in reasonable reliance
    on the representation; and (3) detriment as a consequence of the
    act or omission."         Bongaards v. Millen, 
    793 N.E.2d 335
    , 339 (Mass.
    2003).        "[T]he party asserting the estoppel theory has a heavy
    burden to prove that all [three] elements are present."                 Sullivan,
    9
    We review the district court's grant of summary judgment de
    novo, drawing all reasonable inferences in favor of the non-moving
    party. Beacon Mut. Ins. Co. v. OneBeacon Ins. Grp., 
    376 F.3d 8
    , 14
    (1st Cir. 2004).
    10
    The parties recognize, through multiple citations, that the
    contract claims in this case are governed by Massachusetts law.
    Further, as the record does not reveal a contrary choice of law
    provision in the bylaws, the IP policy, or Greene's employment
    contracts, we conclude that Massachusetts law must apply.       See
    Restatement (Second) of Conflict of Laws § 188(3) (1971)
    (explaining that, in the absence of a choice of law provision,
    "[i]f the place of negotiating the contract and the place of
    performance are in the same state, the local law of this state will
    usually be applied").
    -11-
    858 N.E.2d at 712 (quoting Clickner v. City of Lowell, 
    663 N.E.2d 852
    , 856 (Mass. 1996)) (internal quotation marks omitted).
    Here, Greene's estoppel defense fails because he cannot
    establish the first element, "a representation intended to induce
    reliance."    The representation underlying an estoppel defense need
    not be a verbal one: "conduct amounting to a representation" is
    sufficient. Boylston Dev. Grp., Inc. v. 22 Boylston St. Corp., 
    591 N.E.2d 157
    , 163 (Mass. 1992) (quoting Cellucci v. Sun Oil Co., 
    320 N.E.2d 919
    ,   923    (Mass.   App.    Ct.    1974)).     Neither   does     the
    representation have to amount to "deceit, bad faith or actual
    fraud"; rather, the court looks for "conduct contrary to general
    principles of fair dealing."       Edwards v. Sullivan & Cogliano Cos.,
    Inc., 
    2002 Mass. App. Div. 43
    , 43 (2002) (quoting MacKeen v.
    Kasinskas, 
    132 N.E.2d 732
    , 734 (Mass. 1956)).              Greene argues that
    MGH represented that he owned the Marks by (1) behaving as if he
    owned the Marks, and (2) failing to disclose the IP policy.
    a. Behavior Suggesting Greene Owned the Marks
    To support his first contention, that MGH behaved as if
    he owned the CPS Marks, Greene points to three alleged facts:
    (1) MGH was aware of and endorsed his use of the Marks in
    unaffiliated enterprises; (2) MGH allowed the Center to share space
    with the Institute; and (3) MGH did not object when, in 2002,
    Greene registered one of the CPS Marks in his own name on the USPTO
    supplemental    register.       Drawing       all   reasonable   inferences    in
    -12-
    Greene's favor for summary judgment purposes, but mindful that
    Greene has the burden of proving his estoppel defense, we cannot
    find that any of this conduct amounted to a representation that
    Greene owned the CPS Marks.
    Greene's participation in activities that took place
    outside of MGH, in which he nevertheless made use of the CPS Marks,
    was consistent with MGH's ownership of the Marks.        Greene always,
    to MGH's knowledge, identified himself by his MGH affiliation.       By
    identifying himself as an MGH affiliate, Greene rendered his uses
    harmonious with MGH's ownership of the Marks because Greene's self-
    identification with MGH served to identify the Marks with MGH as
    well.        Also, Greene's own account of conversations he had with MGH
    about his external uses suggests that he sought MGH's approval to
    use the Marks in outside contexts.11            These interactions are
    entirely consistent with MGH's position as owner because, even on
    Greene's telling of events, he used the Marks at MGH's pleasure.
    Nor does MGH's acquiescence to Greene's use of the Marks
    in the names of his private corporations amount to a representation
    11
    According to Greene, "he informed MGH as to how he was using
    the Marks to describe and brand his non-MGH activities and . . .
    the hospital representatives agreed to that use." Greene Br. 31
    (emphasis added).    Greene also writes that "MGH endorsed and
    supported [his use of the Marks]." 
    Id. at 30
     (emphasis added).
    Finally, Greene stated in his affidavit that he discussed his
    private use of the Marks with Dr. Rosenbaum during negotiations for
    the creation of the Institute, and Dr. Rosenbaum did not object to
    Greene's continued private use of the Marks. A. 2329 ¶ 32.
    -13-
    that Greene owned the Marks.12     These private corporations, the
    Clinic and the Center, shared physical space with the Institute
    but, unlike the Institute, were not formally affiliated with MGH.
    Use of the Marks in the names of both Greene's private corporations
    and the MGH-affiliated Institute would ordinarily suggest a common
    source for those services.       In one sense, that was entirely
    accurate, for Greene and Ablon were the principals in all three
    organizations.   Furthermore, even when used in Greene's private
    enterprises, the Marks represented the same service, namely, the
    methodology Greene developed.
    But MGH, as owner of the Marks, would want to avoid
    confusion as to the source of CPS services whenever the Marks were
    used in a context not affiliated with MGH.   See Star Fin. Servs.,
    Inc. v. AASTAR Mortg. Corp., 
    89 F.3d 5
    , 9 (1st Cir. 1996) ("The
    purpose of trademark laws is to prevent the use of the same or
    similar marks in a way that confuses the public about the actual
    source of the goods or service."). That is precisely what MGH did.
    In an email from its Office of General Counsel, MGH required Greene
    to make clear to the public that his private corporations were "not
    associated or affiliated with MGH in any way."      Thus, MGH both
    12
    For Greene's use of the Marks in his private corporations
    to support his argument about MGH's representations, MGH would have
    to know that Greene was using the Marks in this manner. The record
    supports the inference that MGH was, indeed, aware of this use of
    the Marks. See A. 1542 (identifying Greene's private practice as
    the "CPS Clinic" in an email from Greene to the MGH Office of
    General Counsel).
    -14-
    allowed Greene to promote the CPS Approach and behaved in a manner
    consistent with the notion that the trademark ordinarily -- i.e.,
    absent     a   disclaimer    to   the   contrary        --   stood    for    services
    associated with MGH. Such behavior falls far short of representing
    that Greene owned the Marks.
    Greene's two remaining arguments pertaining to MGH's
    behavior are equally unavailing. First, while Greene points to the
    fact that his private corporation, the Center, shared space with
    the   MGH-affiliated       Institute,      we    fail   to   see     how   co-tenancy
    translates into a representation about ownership of the Marks.
    Second, although Greene argues that MGH did not object to his 2002
    registration of a CPS service mark in his own name with the USPTO,
    Greene does not assert that MGH knew about that registration until
    this action began.13        In his reply brief, he tries to shift the
    burden to MGH and accuses MGH of failing to cite any evidence in
    the record to show that it did not have knowledge of Greene's
    registration.        But    the   burden    to    produce     evidence      of   MGH's
    13
    Greene also contends that the chief of the MGH Department
    of Psychiatry demanded that he "relinquish" the Marks. However,
    such a statement does not support Greene's estoppel defense because
    the alleged statement was not made until 2008, long after the
    Institute was founded and after Greene had signed every one of his
    employment agreements. By 2008, Greene had already ceded ownership
    of the Marks to MGH through years of affiliating the Marks with the
    Institute and using MGH's financial infrastructure. Consequently,
    even if we treated this statement as a representation about
    Greene's ownership, it would be impossible for Greene to show the
    necessary detrimental reliance.
    -15-
    knowledge, and thereby render MGH's failure to object meaningful,
    rests with Greene.
    b. Failure to Disclose the IP Policy
    To support the notion that MGH's failure to disclose the
    IP policy amounted to a representation that Greene owned the Marks,
    Greene points to (1) MGH's exclusive knowledge of the IP policy;
    (2) the unfairness of enacting a policy mid-appointment that could
    result in an employee's unknowing loss of IP rights; and (3) the
    lack of a warning in his employment contracts that policies could
    change or may have changed since the last appointment, coupled with
    the similarity of language across his employment contracts. All of
    these arguments are grounded in Greene's assertion that he did not
    have   actual   knowledge    of   the   IP   policy   until   after   he    had
    unwittingly ceded his intellectual property rights to MGH by
    allowing the Marks to become affiliated with the Institute.
    Extrinsic materials may be incorporated into a contract
    by reference as long as "the language used in the contract . . .
    clearly communicate[s] that the purpose of the reference is to
    incorporate the referenced material into the contract (rather than
    merely to acknowledge that the referenced material is relevant to
    the contract, e.g., as background law or negotiating history)."
    NSTAR Elec. Co. v. Dep't of Pub. Utils., 
    968 N.E.2d 895
    , 905 (Mass.
    2012) (internal quotation marks omitted). "Unless incorporation by
    general   reference   is    explicitly     rejected   by   some   statute   or
    -16-
    regulation, incorporation by a clearly stated general reference
    will suffice."     Chicopee Concrete Serv., Inc. v. Hart Eng'g Co.,
    
    498 N.E.2d 121
    , 122 (Mass. 1986).
    Accordingly, a Massachusetts employer's policies may be
    incorporated by reference into its employment contracts.                     See
    Madonna v. Trs. of Univ. of Mass., 
    593 N.E.2d 1321
    , 1322 (Mass.
    App. Ct. 1992) (holding that an employer bound an employee to its
    personnel policy with the following language on the reverse side of
    an employment contract: "All employees of the University are
    employed pursuant to and subject to the polices and procedures of
    the Medical Center and the policies, rules and regulations adopted
    by the Board . . . as amended, revised, or repealed from time to
    time").
    Here,    the     language     in     Greene's     applications     and
    appointment forms was sufficiently clear to incorporate the IP
    policy    by   reference.       Greene        signed   and    submitted     three
    applications while the 2002 version of the IP policy was in effect:
    in October 2003, August 2005, and October 2007.               Each application
    stated, "I have received and had an opportunity to read the Bylaws
    of the Medical/Professional Staff.            I specifically agree to abide
    by all such bylaws and any policies and procedures that are
    applicable to appointees to the Medical/Professional Staff."                Each
    application was accepted and Greene received, on each occasion, a
    Professional Staff Appointment Form stating, "In discharging the
    -17-
    duties and exercising the privileges of your appointment, you are
    required to . . . [a]bide by the Bylaws, rules, regulations, and
    policies of the Professional Staff and the Hospital."
    Once it is acknowledged that at least three of Greene's
    employment contracts incorporated the IP policy as enacted in 2002,
    his   arguments   quickly   fall   away   because   of   "[t]he   general
    rule . . . that, in the absence of fraud, one who signs a written
    agreement is bound by its terms whether he reads and understands it
    or not."    Spritz v. Lishner, 
    243 N.E.2d 163
    , 164 (Mass. 1969)
    (quoting Cohen v. Santoianni, 
    112 N.E.2d 267
    , 271 (Mass. 1953));
    see St. Fleur v. WPI Cable Sys./Mutron, 
    879 N.E.2d 27
    , 35 (Mass.
    2008) (distinguishing Cohen because the plaintiff alleged fraud in
    the inducement); Rosenberg v. Merrill Lynch, Pierce, Fenner &
    Smith, Inc., 
    170 F.3d 1
    , 18, 21 n.17 (1st Cir. 1999) (stating, in
    a case in which the plaintiff signed a form incorporating "rules,
    constitutions, or by-laws," that "[i]f [the defendant] had provided
    the rules to [the plaintiff] but she did not read them, that would
    not save her [from having to abide by those rules]").
    Greene argues that it is unfair to hold him to a policy
    enacted in the middle of one of his appointments.         When the 2002
    version of the IP policy was enacted, Greene was in the middle of
    an appointment that began in November 2001 and ended in November
    2003.   However, considering Greene's subsequent applications in
    October 2003 and August 2005 (the latter of which included explicit
    -18-
    reference to the IP policy), the fact that the IP policy was
    enacted mid-appointment is inconsequential.      As the district court
    reasoned, MGH's claim to the CPS Marks arose, inter alia, from the
    association of the Marks with MGH services, namely, the Institute.
    Greene allowed that association to continue even after he signed
    subsequent applications agreeing to abide by the IP policy.14
    Finally, Greene complains that his employment contracts
    did not explicitly warn him that MGH might adopt new policies or
    modify existing policies.     The argument fails to appreciate that
    Greene's tenure at MGH was not one continuous period of employment.
    Rather, Greene enjoyed ten separate appointments, each governed by
    a separate agreement to be bound by the policies then in effect.
    Regardless of the facial similarity between contracts, Greene was
    required to read or assume the risk of not reading the policies
    incorporated afresh into each agreement.
    In   sum,   since   MGH's   conduct   did   not   amount   to   a
    representation that Greene owned the Marks, Greene's estoppel
    defense fails.
    14
    This reasoning also applies to Greene's argument that the
    policy could not be applied "retroactively" to IP created before
    2005.   Even if the policy did not apply until 2005, Greene
    nevertheless permitted the ongoing association of the Marks with
    the Institute.
    -19-
    2. Meeting of the Minds
    Rehearsing similar arguments under a different heading,
    Greene argues that a valid contract was not formed at all because
    there was no "meeting of the minds."    Since he did not know the IP
    policy existed, the argument goes, "Greene simply did not agree to
    be bound."
    Although mutual assent is often misleadingly referred to
    as a "meeting of the minds," the formation of a valid contract
    under Massachusetts law requires objective, not subjective, intent.
    Nortek, Inc. v. Liberty Mut. Ins. Co., 
    843 N.E.2d 706
    , 713-14
    (Mass. App. Ct. 2006).     "A party's intent is deemed to be what a
    reasonable man in the position of the other party would conclude
    his objective manifestations to mean."     CSX Transp. Inc. v. ABC &
    D Recycling, Inc., No. 11-30268-FDS, 
    2013 WL 3070770
    , at *5 (D.
    Mass. June 14, 2013).        Assent may be inferred from conduct.
    Okerman v. VA Software Corp., 
    871 N.E.2d 1117
    , 1125 (Mass. App. Ct.
    2007).
    Here, notwithstanding Greene's assertions that he was
    unaware of the IP policy, he objectively manifested the intent to
    be bound by that policy when, without reservation, he signed the
    employment agreements that incorporated it by reference. See I & R
    Mech., Inc. v. Hazelton Mfg. Co., 
    817 N.E.2d 799
    , 802 (Mass. App.
    Ct. 2004) ("The manifestation of mutual assent between contracting
    parties generally consists of an offer by one and the acceptance of
    -20-
    it by the other.").           Under these circumstances, there can be no
    doubt that Greene intended to be bound by his employment agreements
    in their totality.            Separate evidence of Greene's assent to a
    particular      provision      (the    incorporated    IP    policy)    would   be
    superfluous.         Nevertheless,       Greene    provided     precisely     that
    additional evidence by signing the supplemental forms in 2005 and
    2007.        These forms, which Greene submitted with his final two
    employment applications, gave explicit notice of the IP policy and
    provided a URL address where the policy text could be accessed.
    Against the weight of such clear manifestations of objective
    intent, Greene's meeting of the minds defense cannot succeed.
    3. Unilateral Mistake
    Finally,   Greene      argues   that,   for   the     same   reasons
    asserted above, his employment agreements are voidable under the
    doctrine of unilateral mistake.                The district court held that
    Greene waived the unilateral mistake affirmative defense by failing
    to plead it in his answer to MGH's counterclaim.               We find that the
    defense could not succeed even if it were not waived.
    Unilateral mistake is a disfavored defense.             See, e.g.,
    Eck v. Godbout, 
    831 N.E.2d 296
    , 303 (Mass. 2005) ("A release may be
    rescinded or modified based on a mutual mistake of the parties, but
    not     on    one   party's    unilateral      'mistake'     about    how   future
    contingencies might make the release inadvisable."); see also
    Restatement (Second) of Contracts § 153 cmt. a (1981) ("Courts have
    -21-
    traditionally been reluctant to allow a party to avoid a contract
    on the ground of mistake, even as to a basic assumption, if the
    mistake was not shared by the other party.").                Nevertheless, a
    contract may be avoided under Massachusetts law if the party
    asserting unilateral mistake does not bear the risk of the mistake
    and either (1) enforcing the agreement would be unconscionable or
    (2) the other party had reason to know of the mistake or his fault
    caused the mistake.       Nissan Autos. of Marlborough, Inc. v. Glick,
    
    816 N.E.2d 161
    , 166 (Mass. App. Ct. 2004) (citing Restatement
    (Second) of Contracts § 153).        "A party bears the risk of a mistake
    when . . . he is aware, at the time the contract is made, that he
    has only limited knowledge with respect to the facts to which the
    mistake relates but treats his limited knowledge as sufficient
    . . . ."   Restatement (Second) of Contracts § 154; accord Horney v.
    Westfield Gage Co., Inc., 77 Fed. App'x 24, 34 (1st Cir. 2003);
    Covich v. Chambers, 
    397 N.E.2d 1115
    , 1121 n.13 (Mass. App. Ct.
    1979).     In part due to the doctrine's origins in equity, courts
    have "considerable discretion" in matters of contractual mistake.
    O'Rourke v. Jason Inc., 
    978 F. Supp. 41
    , 47 (D. Mass. 1997).
    Here,   the    mistake   to     which   Greene   refers   is   his
    misunderstanding about whether an IP policy existed and applied to
    the Marks.     Greene's argument fails because he bore the risk of
    that mistake when he signed his employment contracts knowing that
    he had incomplete knowledge about the terms of those contracts.
    -22-
    All of his employment contracts clearly stated that he would be
    bound to MGH's "policies," yet he did not seek out or read those
    policies.     Greene therefore "treat[ed] his limited knowledge as
    sufficient" and assumed the risk of mistake.              Even if Greene did
    not bear the risk, we could not find it unconscionable to enforce
    the agreements under the circumstances. Nor could we find that MGH
    had reason to know Greene was unfamiliar with the IP policy,
    particularly considering that Greene explicitly acknowledged that
    policy in the 2005 and 2007 supplemental forms.                  The unilateral
    mistake defense, like Greene's other defenses, must fail.
    Since all of Greene's contract-based defenses fail, the
    judgment for MGH is affirmed.
    II. The Copyright Dispute
    A. Factual Background
    In 1998, Greene published The Explosive Child, a book
    explaining the CPS Approach for lay audiences.              The book has been
    published     in   three    subsequent   editions   and     is    uncontestedly
    Greene's solo work.        Also in 1998, Greene met Ablon, a trainee in
    the   MGH   psychology      internship   program.      As    one    of   Ablon's
    supervisors, Greene became his mentor.         Under Greene's mentorship,
    Ablon became interested in the CPS Approach and began assisting in
    its dissemination through workshops and speaking engagements.
    In early 2002, Greene and Ablon wrote a prospectus for a
    new   book,    ultimately      called    Treating   Explosive       Kids:   The
    -23-
    Collaborative Problem Solving Approach ("Treating Explosive Kids").
    The prospectus acknowledged that the CPS Approach had first been
    articulated in Greene's prior work, The Explosive Child.          In
    contrast to its predecessor, Treating Explosive Kids was to be co-
    authored by Greene and Ablon and written for an audience of mental
    health professionals.     In April 2002, they signed a publishing
    contract with Guilford Publications, Inc. ("Guilford"), agreeing to
    complete the book by the end of 2002.
    Both Greene and Ablon agree that, at the time they signed
    the publishing contract, they intended that Ablon would make
    substantive contributions to the book.      They disagree, however,
    about the quantity and quality of Ablon's actual contributions.
    According to Ablon, he "submitted most if not all of the treatment
    vignettes" -- dialogues that appear on 145 pages of the 226-page
    book. Ablon also claims to have taken "the lead in writing Chapter
    8, regarding implementation of CPS in therapeutic and restrictive
    facilities, which wound up being 25 pages long," to have written
    "significant parts of other portions of the book[,] and [to have]
    reviewed and made suggestions for many other sections."
    Greene tells a different story.    According to Greene,
    "After significant delay, Dr. Ablon, rather than delivering an
    acceptable manuscript, delivered to me an 'attempt' at only one
    chapter."    Ablon's work was, in Greene's view, "poorly written,
    lacked focus, and did not accurately represent the [CPS Approach]."
    -24-
    Greene claims that, after consulting with the agent who had
    represented him and Ablon in their dealings with Guilford, he
    discarded "most" of Ablon's draft and wrote what amounted to almost
    the entire book himself.        However, as Greene explains, "In an
    attempt to salvage for him some co-authorship role, we decided that
    he (Dr. Ablon) would contribute as original material some treatment
    vignettes    describing      some   treatment     interactions   he   had
    encountered."       Greene   calculates    that   Ablon's   contributions
    survived on fewer than fifteen pages of the final published text.
    Both authors acknowledge that Greene edited the drafts.
    Guilford published Treating Explosive Kids in October
    2005.   The book identifies Greene and Ablon as co-authors and as
    co-owners of the copyright. Greene and Ablon divide royalties from
    the book equally.
    By 2007 or 2008, Greene and Ablon's relationship had
    soured, and efforts to improve their relationship through lawyers
    and a mediator proved ineffective.           Ablon became a full-time
    employee at MGH at the end of 2008 and, soon after, was appointed
    Director of the Think:Kids program.        In that capacity, Ablon has
    created written expression, including PowerPoint slides, that
    describe and promote the CPS Approach and which form part of the
    basis for this action.        MGH terminated Greene's employment on
    January 15, 2009.
    -25-
    B. Procedural Background
    In his June 2009 complaint and in two subsequent amended
    complaints, Greene filed several claims against Ablon.   He alleged
    that certain of Ablon's PowerPoint slides infringed on Greene's
    copyrights in The Explosive Child (Count I) and Treating Explosive
    Kids (Count II).   Greene also sought an accounting for Ablon's use
    of Treating Explosive Kids (Count III), an injunction enjoining
    Ablon from continued infringement of The Explosive Child (Count
    XI), and a declaration of the intellectual property rights of the
    parties (Count XII).
    Ablon moved for partial summary judgment.   On September
    17, 2012, the district court granted the motion in part and denied
    it in part.   In particular, the district court held that Treating
    Explosive Kids was a joint work under the Copyright Act.   However,
    the court stated that it could not resolve at summary judgment
    whether Treating Explosive Kids was also a derivative work because
    the record was "sufficiently open-ended to permit a rational
    factfinder to conclude either that Treating Explosive Kids is a
    derivative work based on The Explosive Child or that Treating
    Explosive Kids is not a derivative work."
    At a status conference on December 4, 2012, the court
    asked counsel for both sides whether, as a legal matter, Treating
    Explosive Kids could be a derivative work in light of the court's
    earlier ruling that it was a joint work.         Greene and Ablon
    -26-
    submitted simultaneous briefs on the issue nine days later.       On
    January 9, 2013, at the final pretrial conference, the court again
    heard from both parties on the derivative work issue.    Noting that
    it had gained greater clarity on the issue since the summary
    judgment motion, the district court ruled on a motion in limine
    that Treating Explosive Kids could not be both joint and derivative
    as a matter of law.   Therefore, in light of its earlier ruling that
    the book was a joint work, the derivative work question would not
    go to the jury.     The court then dismissed Count II of Greene's
    complaint, which alleged that Ablon's slides infringed on Treating
    Explosive Kids, because Ablon co-owned that book and could not
    infringe on it as a matter of law.
    Count I of Greene's complaint -- that Ablon's PowerPoint
    slides infringed on Greene's solo work, The Explosive Child -- went
    to trial on January 14, 2013.15        Greene contends that "a large
    portion" of the evidence he planned to present at trial was
    excluded because the court did not allow him to present expressions
    from Ablon's slides that were also found in Treating Explosive
    Kids.16   Greene ultimately introduced six expressions from Ablon's
    15
    The court had issued its dissection analysis of The
    Explosive Child on December 4, 2012. Greene v. Ablon, 
    914 F. Supp. 2d 110
     (D. Mass. 2012); see Concrete Mach. Co. v. Classic Lawn
    Ornaments, Inc., 
    843 F.2d 600
    , 608-09 (1st Cir. 1988) (explaining
    that the purpose of a dissection analysis is to identify the
    elements of a work that are protected by copyright).
    16
    Greene argues he was prevented from presenting expressions
    from Ablon's slides that were the same as or similar to expressions
    -27-
    slides that did not also appear in Treating Explosive Kids and that
    allegedly infringed on The Explosive Child.
    Trial lasted eight days.        At the close of Greene's case,
    Ablon moved for judgment as a matter of law under Federal Rule of
    Civil Procedure 50(a) and renewed his motion at the close of his
    own case, but the court denied his motions and let the jury decide
    the infringement claim.17           The jury awarded Greene $19,000 in
    statutory damages.18 Greene then moved for judgment on his remedial
    claims, which the parties had agreed would be submitted to the
    court after trial: an accounting of profits Ablon earned from his
    use of their joint work, Treating Explosive Kids (Count III); an
    injunction       to   prevent   Ablon   from    infringing   further   on   The
    Explosive Child (Count XI); and a declaration of the rights of the
    parties (Count XII).            Meanwhile, Ablon renewed his motion for
    judgment as a matter of law, now under Federal Rule of Civil
    Procedure 50(b).        The district court denied these motions and, on
    September 20, 2013, entered final judgment for Greene on Count I of
    his complaint and for Ablon on all other counts.
    found in Treating Explosive Kids, although in fact the court only
    excluded expressions from the slides identical to those found in
    Treating Explosive Kids.
    17
    The motion was granted in regard to claims not relevant
    here.
    18
    Under 
    17 U.S.C. § 504
    (c)(1), a copyright owner may pursue
    actual damages or "may elect, at any time before final judgment is
    rendered, to recover, instead of actual damages and profits, an
    award of statutory damages" between $750 and $30,000.
    -28-
    Greene appeals (1) the district court's summary judgment
    decision that Treating Explosive Kids is a joint work; (2) the
    court's ruling that Treating Explosive Kids is not a derivative
    work; and (3) the court's denial of his motions for an accounting
    and injunctive relief.    Ablon appeals the court's denial of his
    renewed motion for judgment as a matter of law.
    C. Joint Work
    The district court held in its summary judgment ruling
    that Treating Explosive Kids is a joint work.      Under the Copyright
    Act, a joint work is "a work prepared by two or more authors with
    the intention that their contributions be merged into inseparable
    or interdependent parts of a unitary whole."         
    17 U.S.C. § 101
    .
    "Inseparable" contributions "have little or no independent meaning
    standing alone," as might frequently be the case with collaboration
    on a written text like a play or a novel.   Childress v. Taylor, 
    945 F.2d 500
    , 505 (2d Cir. 1991).   "Interdependent" contributions, on
    the other hand, "have some meaning standing alone but achieve their
    primary significance because of their combined effect, as in the
    case of the words and music of a song."      
    Id.
         For a work to be
    "joint," the authors must have intended, "at the time the writing
    is done," that their contributions be merged into "an integrated
    unit."   
    Id.
     (emphasis omitted) (quoting H.R. Rep. No. 1476, at 120
    (1976), reprinted in 1976 U.S.C.C.A.N. 5659, 5736).         It is not
    necessary that the authors' contributions be quantitatively or
    -29-
    qualitatively equal, only that each author's contribution be more
    than de minimis.        1 Melville Nimmer & David Nimmer, Nimmer on
    Copyright § 6.07[A][1] (2014) ("Nimmer").
    Authors who create a joint work co-own the copyright in
    that work.    
    17 U.S.C. § 201
    (a); see also Saenger Org., Inc. v.
    Nationwide Ins. Licensing Assocs., Inc., 
    119 F.3d 55
    , 59 (1st Cir.
    1997) (citing § 201(a) for the premise that "copyright protection
    generally    attaches    to   the   person   [or   persons]   who   actually
    create[ ] a work"). Joint authors share "equal undivided interests
    in the whole work -- in other words, each joint author has the
    right to use or to license the work as he or she wishes, subject
    only to the obligation to account to the other joint author for any
    profits that are made."       Thomson v. Larson, 
    147 F.3d 195
    , 199 (2d
    Cir. 1998). Even if it is clear that one co-author has contributed
    more to the work than another co-author, they are nevertheless
    equal owners of the copyright in the absence of an agreement to the
    contrary. 1 Nimmer § 6.08.
    Greene argues that it is a genuine issue of material fact
    whether he intended his contributions to merge with Ablon's into a
    unitary whole. He concedes that the book, as originally conceived,
    would have been such an integrated work, but insists that his
    intention changed after seeing Ablon's early efforts.               At that
    point,   Greene   asserts,    the   initial   project   was   aborted   and
    reignited with different intentions: Ablon's contributions were to
    -30-
    be limited to a handful of stand-alone vignettes. As noted, Greene
    calculates that Ablon's contributions ultimately comprised no more
    than fifteen pages of the final 226-page published manuscript.
    Even accepting that Ablon contributed a scant fifteen
    pages of excisable vignettes, Greene's argument fails because he
    confuses the quality and quantity of Ablon's contributions with the
    relationship the authors intended those contributions would have to
    the rest of the book.   We agree with the district court that "there
    is no evidence that either Greene or Ablon believed that Treating
    Explosive Kids was anything other than a unitary book, and there is
    abundant evidence that Ablon's contributions to the book would be
    [i.e., proved to be and, more importantly, were intended to be]
    interdependent with Greene's contributions."   Greene v. Ablon, No.
    09-10937-DJC, 
    2012 WL 4104792
    , at *11 (D. Mass. Sept. 17, 2012)
    (citations omitted).     Although Ablon's vignettes and Greene's
    surrounding passages may "have some meaning standing alone," the
    structure of the book -- vignettes nested in related text --
    demonstrates that these contributions were undoubtedly intended to
    "achieve their primary significance because of their combined
    effect." Childress, 
    945 F.2d at 505
    . Furthermore, the prospectus,
    the publishing contract,19 the copyright notice, and the book itself
    19
    Ablon argues that we need not engage in a copyright analysis
    to determine if he and Greene are co-owners of the book because the
    publishing contract establishes that relationship.       While the
    contract provides some evidence that Greene and Ablon intended to
    co-own the Treating Explosive Kids copyright -- as through the
    -31-
    all describe Greene and Ablon, without distinction, as co-authors
    of a single work.       Based on these facts, the only reasonable
    conclusion is that Ablon's contributions were always intended to be
    interdependent   with   Greene's.      Therefore,   the   district   court
    correctly determined at summary judgment that Treating Explosive
    Kids is a joint work, meaning that Greene and Ablon jointly own the
    copyright in that work.
    D. Derivative Work
    Although in its summary judgment ruling the district
    court held that it was a genuine issue of material fact whether
    Treating Explosive Kids is a derivative work, the court modified
    its ruling shortly before trial.       Accepting Ablon's argument that
    the book could not be both a joint work and a derivative work as a
    matter of law, and seeing no reason to disturb its earlier decision
    that Treating Explosive Kids was a joint work, the court ruled on
    publisher's (unkept) promise to register the copyright "in the
    author's names [sic]" -- the contract itself only concerns the
    relationship between the authors and the publisher, not the
    relationship between Greene and Ablon. For example, the contract
    details how royalties are to be divided between the publisher on
    one hand and the authors on the other, but not how the authors are
    to divide royalties. While one may infer from the contract that
    Greene and Ablon equally co-own the copyright, the joint work
    analysis unequivocally establishes that fact.    Furthermore, the
    parties contest whether Treating Explosive Kids can be both joint
    and derivative as a matter of copyright law. Addressing the joint
    work question is a necessary predicate to that discussion. See
    infra Section II(D).
    -32-
    a motion in limine that the book could not be a derivative work as
    a matter of law.20
    Greene   argues    that    this      ruling   was    erroneous    and
    improperly circumscribed his case.                He asserts that, if the
    derivative work question had gone to the jury, he would have sought
    to introduce into evidence an additional two dozen expressions
    showing that Ablon's PowerPoint slides infringed on expression that
    he alone owned in both books.         Although Greene is correct that the
    district court's ruling was erroneous -- a work can be both joint
    and derivative -- he misunderstands the consequences of that error
    and has not shown that it affected the trial.
    A derivative work is "a work based upon one or more
    preexisting   works."     
    17 U.S.C. § 101
    .     It    "consists    of   a
    contribution of original material to a pre-existing work so as to
    recast, transform or adapt the pre-existing work." Mass. Museum of
    Contemporary Art Found., Inc. v. Büchel, 
    593 F.3d 38
    , 64-65 (1st
    Cir. 2010) (quoting 1 Nimmer § 3.03[A]).                  Importantly, "[t]he
    copyright in a . . . derivative work extends only to the material
    contributed by the author of such work, as distinguished from the
    preexisting material employed in the work . . . ."                    
    17 U.S.C. § 103
    (b).   With respect to that preexisting work, "[a]ny elements
    20
    Greene objects to the court modifying its summary judgment
    ruling on a motion in limine. Because we find the district court's
    legal conclusion erroneous in any event, we need not reach this
    procedural issue.
    -33-
    that the author of the derivative work borrowed from the underlying
    work . . . remain protected by the copyrights in the underlying
    work."   Gamma Audio & Video, Inc. v. Ean-Chea, 
    11 F.3d 1106
    , 1112
    (1st Cir. 1993).
    Greene maintains that, when a derivative work is created
    jointly, each co-author owns only the contributions he or she
    personally penned.    However, nothing about the limited scope of a
    derivative work copyright upsets the ownership regime that normally
    arises when more than one author contributes to a work.            When the
    authors of a derivative work are joint authors, they share equally
    in the copyright to the derivative work, regardless of who penned
    the new material.    See 
    17 U.S.C. § 201
    (a).          Thus, Greene has no
    greater claim than Ablon to any of the original expression in
    Treating Explosive Kids, and he cannot claim copyright infringement
    on the basis of Ablon's use of that original expression in his
    PowerPoint slides.
    We do have the fact here that an author of the joint
    work, Treating Explosive Kids, is also the author of the relevant
    preexisting work, The Explosive Child.         However, that coincidence
    does not affect the contours of the Treating Explosive Kids
    copyright, nor does it upset the joint ownership arrangement
    described above.     Treating Explosive Kids may be both joint and
    derivative,   with   Greene   alone   owning    the    copyright    in   the
    -34-
    underlying work -- The Explosive Child               -- and co-owning the
    copyright in the derivative work with Ablon.21
    Hence, Greene might have a viable infringement claim
    against Ablon if Ablon created a derivative of Treating Explosive
    Kids, such as the slides, that used the non-original material in
    Treating    Explosive    Kids   --   i.e.,    material   derived       from   The
    Explosive Child and covered by Greene's copyright in that work.
    Consequently, Greene should have been allowed to introduce into
    evidence   slides   with   expression       drawn   verbatim    from   Treating
    Explosive Kids. He could have used that expression to argue to the
    jury both that Treating Explosive Kids is a derivative work based
    on   The   Explosive    Child   and,   relatedly,     that     Ablon   drew    on
    expression from Treating Explosive Kids that the co-owned Treating
    Explosive Kids copyright did not encompass.              See, e.g., Oddo v.
    Ries, 
    743 F.2d 630
    , 634 (9th Cir. 1984) (holding that the co-owner
    of a derivative work infringes on the other co-owner's preexisting
    work when he uses it without permission in a subsequent work,
    notwithstanding that the preexisting work was used in the co-owned
    21
    Professor Nimmer provides another example of how a work may
    be both joint and derivative. He posits a screenplay based on a
    novel.   "[The] screenplay is a derivative work of the novel on
    which it is based. Let us imagine that [two writers] work together
    to translate the [novel] to the silver screen. Their resulting
    screenplay, as between themselves, is a joint work. Nonetheless,
    vis-a-vis the novel, their screenplay is a derivative work. One
    and the same production thus can occupy both statuses."          1
    Nimmer § 6.05 (emphasis omitted). In that example, the screenplay
    writers co-own the screenplay copyright, which does not include
    expression from the preexisting novel.
    -35-
    derivative); see also Danjaq LLC v. Sony Corp., No. CV97-8414-
    ER(Mcx), 
    1998 WL 957053
    , at *3 (C.D. Cal. Jul. 29, 1998) ("[T]he
    owner of the copyright in the original work may sue the author(s)
    of a joint-derivative work who make further derivative works which
    employ pre-existing material from the original work without the
    permission of the owner of the original work.").       Instead, the
    court only allowed Greene to introduce into evidence slides with
    expression that did not appear verbatim in Treating Explosive Kids,
    on the theory that only those slides would support an argument that
    Ablon had infringed Greene's copyright in The Explosive Child.
    On the record before us, however, we are unable to assess
    whether the district court's erroneous conclusion harmed Greene in
    any way.   Greene failed to make an offer of proof of the alleged
    two dozen additional expressions that he claims he would have
    sought to introduce at trial if the court had allowed the jury to
    determine whether Treating Explosive Kids is a derivative work.
    See Fed. R. Evid. 103(a)(2) (requiring an offer of proof); Faigin
    v. Kelly, 
    184 F.3d 67
    , 86 (1st Cir. 1999) ("[I]t is a bedrock rule
    of trial practice that, to preserve for appellate review a claim of
    error premised on the exclusion of evidence, the aggrieved party
    must ensure that the record sufficiently reflects the content of
    the proposed evidence." (internal quotation marks omitted)).   Only
    one expression -- referred to at trial as the "conventional wisdom"
    expression -- was excluded with the necessary offer of proof.
    -36-
    However, the court excluded that expression in part because it was
    not subject to copyright protection, and Greene has not argued that
    the district court's analysis on that point was erroneous. Despite
    numerous opportunities to do so, including his opposition to the
    motion in limine, the final pretrial conference, and the trial,
    Greene has not identified any of the two dozen expressions he
    allegedly would have sought to introduce but for the court's
    ruling.22   Since Greene has not developed a record to show that he
    has been harmed, we decline to remand for further proceedings.
    E. Accounting
    Apart   from   the   infringement   claim   based   on   Ablon's
    unlawful use of expression from The Explosive Child, Greene sought
    an accounting from Ablon for Ablon's use of their joint work,
    Treating Explosive Kids. According to Greene, Ablon earned profits
    from activities that used expression taken from Treating Explosive
    Kids and, since they co-owned the copyright to that work, Ablon was
    obligated to share the profits with Greene.             The parties agreed
    that the accounting claim would be submitted to the court instead
    of to the jury.      After the infringement trial, Greene moved for
    judgment on his accounting claim.          The court denied the motion
    because Greene had not presented any evidence that Ablon had
    22
    Neither has Greene identified these expressions on appeal.
    We are not suggesting, however, that such an offer of proof would
    have been timely.
    -37-
    actually received any profits from his use of their joint work.
    Hence, there was nothing for which to account.
    A co-owner "must account to other co-owners for any
    profits he earns from licensing or use of the copyright."       Oddo,
    
    743 F.2d at 633
    .     The duty to account "comes from 'equitable
    doctrines relating to unjust enrichment and general principles of
    law governing the rights of co-owners.'"    
    Id.
     (quoting Harrington
    v. Mure, 
    186 F. Supp. 655
    , 657-58 (S.D.N.Y. 1960)); see Cambridge
    Literary Props., Ltd. v. W. Goebel Porzellanfabrik G.m.b.H. & Co.
    KG., 
    510 F.3d 77
    , 98 (1st Cir. 2007); Goodman v. Lee, 
    78 F.3d 1007
    ,
    1012 (5th Cir. 1996); Ashton-Tate Corp. v. Ross, 
    916 F.2d 516
    , 522
    (9th Cir. 1990).
    As discussed in Section II(C), Treating Explosive Kids is
    a joint work.   Therefore, Greene and Ablon co-own the copyright to
    that work.   Greene argues that Ablon owes him an accounting for
    having exploited Treating Explosive Kids in two contexts.      First,
    as director of MGH's Think:Kids enterprise, Ablon allegedly used
    expression   from   Treating   Explosive   Kids   in   MGH   programs,
    advertising, and fundraising efforts, as well as in the treatment
    of clients and in the training of clinicians, yielding "large sums
    of revenue" for MGH in the form of donations and fees.23       Second,
    23
    In his motion, Greene did not cite any specific uses of the
    copyrighted material to the district court. On appeal, he cites
    thirty-seven pages in the record reproducing a Think:Kids slide
    presentation and several Think:Kids handouts.       He does not,
    however, identify which particular passages in these thirty-seven
    -38-
    Ablon allegedly earned revenue for himself by using material from
    Treating Explosive Kids in talks he gave outside of MGH.24
    1. MGH Revenue
    The   district     court    rejected     Greene's   first   theory
    because, as a matter of law, Ablon could not be called to account
    for MGH's profits.       The court correctly held that "donations and
    fees to MGH are not subject to an accounting as to Ablon's
    profits."     Greene v. Ablon, No. 09-10937-DJC, 
    2013 WL 4714344
    , at
    *5 (D. Mass. Aug. 28, 2013). As Greene concedes, an accounting can
    only be sought from a co-owner, not the co-owner's licensee, see 1
    Nimmer § 6.12[B], and MGH is not a co-owner of the copyright in
    this case.
    Still, Greene argues, even if Ablon did not himself earn
    revenue from allowing MGH to use the copyright (impliedly licensing
    the   copyright    to   MGH),    MGH's    financial    gain   shows   that   the
    copyright had value, and Ablon must account to him for that value.
    pages are allegedly drawn from Treating Explosive Kids, nor whether
    these pages encompass some of the same slides disputed at trial.
    Nor does Greene explain which passages from Treating Explosive Kids
    appear in the Think:Kids materials. Use, of course, must precede
    an accounting for use. But since Ablon does not contest that he
    used the Treating Explosive Kids materials in the manner Greene
    asserts, we will accept that material from Treating Explosive Kids
    was used in the materials Greene cites.
    24
    Below, Greene also argued a third context: that Ablon's
    salary at MGH was based in part on the exploitation of Treating
    Explosive Kids. The district court declined to speculate on what
    proportion of Ablon's salary, if any, was tied to the Treating
    Explosive Kids copyright. Greene has not revived that argument on
    appeal.
    -39-
    In this argument, Greene is pressing the depletion theory of
    copyright accounting, which supposes that one co-owner's use of the
    work necessarily reduces the residual value available for other co-
    owners to exploit.       See 1 Nimmer § 6.12[A].            This lost value, the
    theory goes, is what justifies the accounting.                    Id.    In effect,
    Greene argues that a party's duty to account for profits earned is
    really a duty to account for value lost.
    We acknowledge the theoretical appeal of the notion that
    if one owner permits free use of the copyright, that owner incurs
    a debt to his co-owner because the use, paid-for or not, partially
    depletes the value of the copyright.              However, the duty to account
    is for profits, not value.           See Cambridge Literary Props., Ltd.,
    
    510 F.3d at 84
     (discussing an "accounting for profits by a co-owner
    of   a    copyright");   Goodman,         
    78 F.3d at 1012
       ("It   is   widely
    recognized that '[a] co-owner of a copyright must account to other
    co-owners for any profits he earns from the licensing or use of the
    copyright . . . .'" (quoting Oddo, 
    743 F.2d at 633
    )); Weissmann v.
    Freeman, 
    868 F.2d 1313
    , 1318 (2d Cir. 1989) ("The only duty joint
    owners have with respect to their joint work is to account for
    profits from its use."); see also Shapiro, Bernstein & Co. v. Jerry
    Vogel Music Co., 
    221 F.2d 569
    , 571 (2d Cir. 1955), modified, 
    223 F.2d 252
     (2d Cir. 1955) (holding that the defendant was "entitled
    to   an    accounting    .   .   .   of    the   proceeds    received     from   the
    exploitation of the copyright" (emphasis added)); Picture Music,
    -40-
    Inc. v. Bourne, Inc., 
    314 F. Supp. 640
    , 646-47 (S.D.N.Y. 1970)
    (referring to a duty to account for "compensation").              Indeed,
    Congress itself referred to "profits" as the subject of a co-
    owner's duty to account. See H.R. Rep. No. 94-1476, at 121 (1976),
    reprinted in 1976 U.S.C.C.A.N. 5659, 5736 (describing co-owners of
    a copyright "as tenants in common, with each co[-]owner having an
    independent right to use or license the use of a work, subject to
    a duty of accounting to the other co[-]owners for any profits").25
    Since Ablon can be called to account only for profits earned, not
    value lost, the district court correctly held that MGH's alleged
    financial gain was irrelevant to Ablon's duty to account.
    2. Ablon's Revenue
    In   his   motion   for    an    accounting,   Greene   referred
    generally to the "evidence at trial" to support his contention that
    Ablon "engaged in speaking programs outside of MGH for which he was
    likely compensated."    The district court rejected this argument,
    stating, "Greene does not identify the evidence that would tie the
    Treating Explosive Kids copyright to compensation that Ablon was
    'likely' to have received."     Greene, 
    2013 WL 4714344
    , at *5.         We
    agree that the record does not support this claim.         Even if Ablon
    were compensated for these speaking engagements, Greene has not
    25
    We note that Congress knew well how to speak of value
    instead of profits, as in the fourth fair use factor: "the effect
    of the use upon the potential market for or value of the
    copyrighted work." 
    17 U.S.C. § 107
    .
    -41-
    provided evidence that Ablon's compensation would have been tied to
    his use of expression from Treating Explosive Kids as opposed to,
    for example, the underlying ideas.          See 
    17 U.S.C. § 102
    (b) ("In no
    case does copyright protection for an original work of authorship
    extend    to    any   idea,    procedure,    process,   system,   method   of
    operation, concept, principle, or discovery . . . ."); Golan v.
    Holder, 
    132 S. Ct. 873
    , 890 (2012) (explaining the "idea/expression
    dichotomy" and describing it as one of two "'traditional contours'
    of copyright protection" (quoting Eldred v. Ashcroft, 
    537 U.S. 186
    ,
    221 (2003))).26
    F. Injunction
    Having secured a verdict that Ablon infringed on The
    Explosive Child with his PowerPoint slides, Greene sought an
    injunction to prevent Ablon from infringing on The Explosive Child
    again in the future.          Like the accounting claim discussed above,
    the request for injunctive relief was submitted to the district
    court on a motion after trial.              The district court denied the
    26
    Greene also appeals the district court's decision not to
    grant additional limited discovery in aid of judgment, i.e., in aid
    of the accounting Greene sought.      As the court wrote, "[t]he
    parties went through extensive discovery lasting almost one
    year . . . . Greene still is not able to point to any evidence
    that Ablon has profited from exploiting his copyright in Treating
    Explosive Kids." Greene, 
    2013 WL 4714344
    , at *5. The court did
    "not see how additional discovery would do anything more than
    increase the cost of litigation to both sides." 
    Id.
     We agree.
    -42-
    motion.27      We review the decision to grant or deny permanent
    injunctive     relief   for   abuse        of   discretion.      eBay   Inc.    v.
    MercExchange, L.L.C., 
    547 U.S. 388
    , 391 (2006).
    The Copyright Act authorizes courts to grant injunctive
    relief for copyright infringement.                
    17 U.S.C. § 502
    (a).          "A
    plaintiff seeking a permanent injunction is traditionally required
    to satisfy a four-factor test: '(1) that it has suffered an
    irreparable injury; (2) that remedies available at law, such as
    monetary damages, are inadequate to compensate for that injury;
    (3)   that,    considering    the    balance      of   hardships   between     the
    plaintiff and defendant, a remedy in equity is warranted; and
    (4) that the public interest would not be disserved by a permanent
    injunction.'" CoxCom, Inc. v. Chaffee, 
    536 F.3d 101
    , 112 (1st Cir.
    2008) (quoting eBay Inc., 
    547 U.S. at 391
    ).              An injunction should
    not   be    granted   where   "a    less    drastic    remedy"   will   suffice.
    Monsanto Co. v. Geertson Seed Farms, 
    561 U.S. 139
    , 165-66 (2010).
    Greene argues that the court abused its discretion by
    failing to credit the possibility that Ablon would continue to
    infringe on The Explosive Child in the future. Greene's prediction
    rests on an allegation that Ablon continued to infringe even after
    Greene filed his complaint.            The district court reasoned that
    Ablon's infringing activities could not "reasonably be expected to
    27
    Greene also sought declaratory relief, which the court also
    denied. Greene does not challenge that ruling on appeal.
    -43-
    continue, where the infringement found by the jury was limited to
    a finite set of presentation slides that can easily be changed
    . . . and where the benefit to Ablon in using this material is
    likely far outweighed by the costs of responding to a future
    lawsuit."    Greene, 
    2013 WL 4714344
    , at *7.
    Greene also argues that the court mistakenly determined
    that his injury was sufficiently addressed by the jury's damages
    award.    He specifies that the jury award did not and could not
    sufficiently compensate him for the "loss of quality control over
    the dissemination of his model nationwide."          The district court
    reasoned that the jury award was adequate because $19,000 is
    situated comfortably in the statutory range of $750 to $30,000,
    suggesting the jury did not feel constrained by the statutory cap.
    See 
    id. at *7
    .
    We detect no abuse of discretion in the court's reasoning
    and will not upset its decision to deny the injunction.            To the
    extent Greene bases his argument on the loss of quality control
    over his method, copyright law does not give the author control
    over a method described in a written work; only control over the
    written   work   itself.   See   
    17 U.S.C. § 102
    (b)   (stating   that
    copyright protection does not extend to ideas).
    G. Cross-Appeal
    Ablon challenges the district court's denial of his post-
    verdict, Rule 50(b) motion for judgment as a matter of law.             We
    -44-
    review the denial of a Rule 50(b) motion de novo.    Quint v. A.E.
    Staley Mfg. Co., 
    172 F.3d 1
    , 9 (1st Cir. 1999).
    At trial, Greene tried to prove that Ablon's PowerPoint
    slides infringed on The Explosive Child, a work Greene wrote and
    owned alone.   Greene presented six expressions from The Explosive
    Child ("expressions one through six") and juxtaposed them with
    allegedly infringing expressions from Ablon's slides ("slides one
    through six").   The jury found that Ablon had indeed infringed on
    Greene's copyright, although the special verdict form did not allow
    the jury to specify which of the six expressions from The Explosive
    Child were infringed.
    Ablon attempts to undermine the verdict by showing that
    his slides could not have infringed on any of the six expressions
    from The Explosive Child.    His argument unfolds in three parts.
    First, Ablon argues that slides one through four are probatively
    similar to a work he co-owns, Treating Explosive Kids, and so those
    expressions could not have infringed on The Explosive Child as a
    matter of law.   Second, he argues that slides two, four, and five
    are not probatively similar to, and therefore do not infringe on,
    The Explosive Child. Finally, Ablon argues that expressions three,
    five, and six from The Explosive Child are not protected by
    copyright law.   We address each argument in turn.
    -45-
    1. Similarity to Treating Explosive Kids
    Ablon argues that his co-ownership of Treating Explosive
    Kids means that certain of the challenged slides should have been
    found non-infringing as a matter of law and excluded from evidence
    at trial.    The court refused to admit evidence of expression from
    Ablon's slides that was reproduced verbatim from Treating Explosive
    Kids. However, the court allowed Greene to introduce evidence from
    the slides that was "similar to" expression found in the joint
    work, including slides one through four, and allowed the jury to
    decide whether those slides infringed on Greene's solely owned
    work, The Explosive Child.
    Ablon's argument, in effect, is that he was entitled to
    judgment as a matter of law on slides one through four because he
    has a right, as co-owner of Treating Explosive Kids, not only to
    take verbatim expressions from that book, but also to create
    "probatively similar" works.28   In other words, he sees his slides
    as derivative works vis-a-vis Treating Explosive Kids and, as co-
    owner of that book, he claims a right to create such derivatives.
    28
    Greene argues that Ablon's use of "probative similarity" is
    misplaced, and that "substantial similarity" is the proper metric
    in this context.     The dispute is immaterial.     The difference
    between the two terms lies in their respective roles in the
    copyright infringement analysis. See T-Peg, Inc. v. Vt. Timber
    Works, Inc., 
    459 F.3d 97
    , 108, 111 (1st Cir. 2006) (explaining that
    "substantial similarity" is used to evaluate "copying," and
    "probative similarity" is used to show "actual copying"
    indirectly).   However, Ablon's argument does not require us to
    differentiate between particular stages of the copyright
    infringement analysis.
    -46-
    Ablon is certainly correct that the co-owner of a joint
    work has a right to create derivative works, such as PowerPoint
    slides, subject to the accounting rights of his co-owner. However,
    he misunderstands the nature of derivative works.               A derivative
    work is simply an infringing work made non-infringing through the
    acquisition    of   permission   to   use   the    underlying    preexisting
    expression.    See TMTV, Corp. v. Mass Prods., Inc., 
    645 F.3d 464
    ,
    471 (1st Cir. 2011) (characterizing an infringing work as "an
    unauthorized    derivative   work");     see      also   1   Nimmer   §   3.01
    (explaining that "a work will be considered a derivative work only
    if[, but for permission to use the underlying work,] it would be
    considered an infringing work"). When a work derives from multiple
    preexisting sources, it is not sufficient for the author to obtain
    permission to use expression from one preexisting source but not
    the others.
    Here, Ablon ignores the possibility that his slides may
    be derivative of both Treating Explosive Kids and The Explosive
    Child.    Although he had a right to make derivative works of the
    former, he had no rights in the latter.29            Hence, the fact that
    Ablon's slides may have derived from Treating Explosive Kids is not
    sufficient to prove, as a matter of law, that the slides did not
    29
    Even if Treating Explosive Kids is itself a derivative work,
    whatever permission Ablon would have had to use expression from The
    Explosive Child in the joint-derivative work would not have
    extended to further derivative works, like the slides. See, e.g.,
    Oddo, 
    743 F.2d at 633-34
    .
    -47-
    infringe on The Explosive Child.       Accordingly, the district court
    correctly denied judgment as a matter of law with respect to slides
    one through four and properly admitted them into evidence.
    2. Similarity to The Explosive Child
    Ablon also argues that slides two, four, and five were
    not sufficiently similar to expression in The Explosive Child for
    a reasonable jury to have found infringement.30            In our de novo
    review of the district court's decision to deny Ablon's Rule 50(b)
    motion, we will not reverse the lower court "unless the evidence,
    together with all reasonable inferences in favor of the verdict,
    could lead a reasonable person to only one conclusion, namely, that
    the moving party was entitled to judgment."             Lama v. Borras, 
    16 F.3d 473
    , 477 (1st Cir. 1994) (quoting PH Group Ltd. v. Birch, 
    985 F.2d 649
    , 653 (1st Cir. 1993)).
    In evaluating whether Ablon's slides and the relevant
    passages from The Explosive Child were substantially similar, the
    jury had to apply the "ordinary observer" test.          "Under that test,
    two works will be said to be substantially similar if a reasonable,
    ordinary    observer,   upon   examination   of   the    two   works,   would
    'conclude    that   the    defendant      unlawfully     appropriated     the
    plaintiff's protectable expression.'"         T-Peg, Inc. v. Vt. Timber
    30
    Here, again, Ablon speaks of probative similarity. However,
    since Ablon is contesting the jury's ultimate infringement
    findings, the proper metric of similarity in this context is
    substantial similarity.     See T-Peg, Inc., 
    459 F.3d at 108
    (explaining the copyright infringement framework).
    -48-
    Works, Inc., 
    459 F.3d 97
    , 112 (1st Cir. 2006) (quoting Johnson v.
    Gordon, 
    409 F.3d 12
    , 18 (1st Cir. 2005)).
    To be sure, some differences in language exist between
    slides       two,   four,     and   five    and    the   related   passages   in   The
    Explosive Child.31           In each pair of expressions, however, key words
    or phrases overlap such that a reasonable jury could have concluded
    that the later expression was a minimally revised version of the
    earlier work and not an original articulation of a common idea.
    Segrets, Inc. v. Gillman Knitwear Co., 
    207 F.3d 56
    , 65 (1st Cir.
    2000)        ("Slight   or    trivial      variations    between   works   will    not
    31
    The slides and passages in question are as follows:
    Slide two ("Reward and punishment programs can teach basic
    lessons but weren't ever intended to teach complicated skills.")
    and this expression from The Explosive Child: "First, notice that
    all the categories end with the same word: skills. Pathways can
    best be thought of as skills that need to be trained. Second,
    reward and punishment programs don't train the child in any of the
    skills."   (In his brief, Ablon misquotes the slide, replacing
    "programs" with "systems".)
    Slide four ("Rather, challenging behavior -- including
    explosions, implosions and everything else in between -- occurs
    when a demand placed upon someone requires skills to handle the
    demand in an adaptive manner that person does not fully possess.")
    and this expression from The Explosive Child: "An explosive
    outburst -- like other forms of maladaptive behavior -- occurs when
    the cognitive demands being placed upon a person outstrip that
    person's capacity to respond adaptively." (In his brief, Ablon
    misquotes the slide, adding "the" before "person".)
    Slide five ("The child has shown he needs someone to serve as
    his 'tour guide' for navigating problems and regulating emotions.")
    and this expression from The Explosive Child: "That is, you're
    going to be doing the thinking for your child that he's currently
    incapable of thinking on his own; you're going to serve as his tour
    guide through frustration." (In his brief, Ablon misquotes The
    Explosive Child, omitting "doing the", turning the semicolon into
    a period, and changing "serve as his" to "serves as a".)
    -49-
    preclude a finding of infringement under the ordinary observer
    test." (quoting Concrete Mach. Co. v. Classic Lawn Ornaments, Inc.,
    
    843 F.2d 600
    , 608 (1st Cir. 1988))).            Given the equivalence in
    language between these portions of the two works, we cannot say
    that a reasonable jury was foreclosed from finding that slides two,
    four, and five were "substantially similar" to Greene's correlative
    expression in The Explosive Child.          Hence, the district court did
    not err in denying Ablon's motion for judgment as a matter of law
    with respect to those slides.
    3. Availability of Copyright Protection
    In his final argument, Ablon contends that expressions
    three, five, and six from The Explosive Child are not subject to
    copyright, and therefore the court should not have admitted them
    into evidence.     We take these expressions in turn, reviewing de
    novo the district court's assessments of copyrightability.            Soc'y
    of Holy Transfiguration Monastery, Inc. v. Gregory, 
    689 F.3d 29
    , 51
    (1st Cir. 2012).
    First,    Ablon   argues    that    expression   three   from   The
    Explosive Child is not sufficiently original to merit copyright
    protection.    Greene's book posits that, "[a]s children develop,
    they learn that . . . most things in life are 'gray,'" and he
    describes certain children as "black and white thinkers stuck in a
    gray world."   As the district court explained, "[h]ere the idea is
    that   explosive    children   suffer        from   an   inflexibility    of
    -50-
    thought . . . .      This idea could be expressed in many ways . . . ."
    Greene v. Ablon, 
    914 F. Supp. 2d 110
    , 119 (D. Mass. 2012).
    In arguing that Greene's expression is not sufficiently
    original, Ablon isolates the words "gray" and "black and white
    thinkers" from the larger expression, and observes that Greene is
    far from the first to employ these phrases to contrast ambiguity
    and precision.       True as that may be, the standard for originality
    in copyright is low.         See Feist Publ'ns, Inc. v. Rural Tel. Serv.
    Co.,   
    499 U.S. 340
    ,    346,    362-63       (1991)      (explaining      that    the
    originality requirement demands only "a modicum of creativity").
    Importantly,       the    question   here        is   not    whether    Greene    has    a
    copyright in those words taken in isolation, but whether their use
    in   the   particular      context     is    protected.         See    Soc'y    of     Holy
    Transfiguration Monastery, 
    689 F.3d at
    52 n.18 (citing Salinger v.
    Random House, Inc., 
    811 F.2d 90
    , 98 (2d Cir. 1987), for the
    proposition     that       "although        ordinary        phrases    might     not    be
    copyrightable, their 'use in a sequence of expressive words does
    not cause the entire passage to lose protection'").                     We agree with
    the district court that Greene's use of the black/white/gray
    imagery to describe a characteristic of the "explosive child"
    satisfies    the    low    threshold        of   originality      required      to     earn
    copyright protection.
    Ablon similarly argues that expression five from The
    Explosive Child is not original and therefore not subject to
    -51-
    copyright protection.32           Here, the relevant phrase from Greene's
    work is: "you're going to serve as [your child's] tour guide
    through frustration."         Ablon focuses on the words "tour guide,"
    contending that they are the only overlap with his slide, which
    reads, "The child has shown he needs someone to serve as his 'tour
    guide' for navigating problems and regulating emotions."                 Greene's
    decision to use "tour guide" in this context as a shorthand for a
    parent's role in a child's emotional journey through difficult
    episodes       easily   passes    the   threshold    of     creativity   the   law
    requires.        Again, the protected expression at issue is not, as
    Ablon avers, the words "tour guide" alone; rather it is the phrase
    in which those words are contained.              We agree with the district
    court        that,   considered    as   a   whole,   that    phrase   meets    the
    originality requirement.
    Finally, Ablon concedes that he copied slide six --
    "[y]our explanation guides your intervention" -- verbatim from The
    Explosive Child, but argues that Greene's expression is not subject
    32
    Ablon also asserts that expression five is subject to the
    merger doctrine. See Yankee Candle Co. v. Bridgewater Candle Co.,
    
    259 F.3d 25
    , 35-36 (1st Cir. 2001) (explaining that, under the
    merger doctrine, copyright protection is not available for
    expression when the underlying idea can only be expressed one way).
    We need not consider merger: Ablon's argument on this point
    consists wholly of a bare assertion that merger applies.       That
    argument is therefore waived. See Alicea v. Machete Music, 
    744 F.3d 773
    , 780 (1st Cir. 2014) ("[I]ssues adverted to in a
    perfunctory manner, unaccompanied by some effort at developed
    argumentation, are deemed waived." (quoting United States v.
    Zannino, 
    895 F.2d 1
    , 17 (1st Cir. 1990))).
    -52-
    to copyright because it is a short phrase.          Ablon is correct that,
    as a general matter, certain kinds of short phrases are excluded
    from copyright protection. The Copyright Office has specified that
    "[w]ords and short phrases such as names, titles, and slogans" are
    not subject to copyright.       
    37 C.F.R. § 202.1
    (a).        However, "much
    turns on the specific short phrases at issue, as not all short
    phrases will automatically be deemed uncopyrightable."              Soc'y of
    Holy Transfiguration Monastery, 
    689 F.3d at 51-52
    ; see 1 Nimmer
    § 2.01[B] ("[E]ven a short phrase may command copyright protection
    if it exhibits sufficient creativity.").
    As the district court explained, "[a]lthough the phrase
    'your explanation guides your intervention' may not seem like a
    novel expression, such is not required for copyright protection."
    Greene, 914 F. Supp. 2d at 120.           Greene uses this short, punchy
    statement to summarize a method for handling explosive children.
    Indeed, the creativity of the phrase is due in part to its succinct
    articulation of a complex concept.           We agree with the district
    court that, in context, the phrase is substantial and creative
    enough to warrant copyright protection.           Cf. Hutchins v. Zoll Med.
    Corp., 
    492 F.3d 1377
    , 1385 (Fed. Cir. 2007) (holding "stay calm,"
    "if   no   pulse,   start   CPR,"   and   "give   two   breaths"   were   each
    "fragmentary phrases" not subject to copyright); Lexmark Int'l,
    Inc. v. Static Control Components, Inc., 
    387 F.3d 522
    , 542 (6th
    Cir. 2004) (comparing a short computer program of sufficient
    -53-
    creativity to other "spare, simple, but creative" expressions, like
    the poetry of e.e. cummings); CMM Cable Rep, Inc. v. Ocean Coast
    Props., Inc., 
    97 F.3d 1504
    , 1520 (1st Cir. 1996) (holding "call in,
    clock in, and win" is an unprotectable slogan); Arvelo v. Am. Int'l
    Ins. Co., 
    66 F.3d 306
    , 306 (1st Cir. 1995) (holding, in an
    unpublished opinion, that the name "Retail Plus" is not subject to
    copyright).33
    III.
    For the foregoing reasons, in the trademark dispute, the
    district court ruled correctly that none of Greene's defenses to
    the enforcement of his employment contracts with MGH succeed.   In
    the copyright dispute, we agree with the district court that
    Treating Explosive Kids is a joint work.    Although the district
    court erroneously concluded that Treating Explosive Kids cannot be
    simultaneously joint and derivative, Greene failed to make an offer
    of proof demonstrating that any harm resulted from the court's
    33
    Ablon argues in the alternative that the copying in slide
    six was de minimis. However, "[t]hat the copying involved only a
    small portion of the plaintiff's work does not by itself make the
    copying permissible.    Indeed, even if the similar material is
    quantitatively small, if it is qualitatively important, the trier
    of fact may properly find substantial similarity. As a result, de
    minimis copying is best viewed not as a separate defense to
    copyright infringement but rather as a statement regarding the
    strength of the plaintiff's proof of substantial similarity."
    Situation Mgmt. Sys., Inc. v. ASP. Consulting LLC, 
    560 F.3d 53
    , 59
    (1st Cir. 2009) (citation omitted) (internal quotation marks
    omitted).   Here, the originality of the phrase, coupled with
    evidence that Ablon copied other portions of The Explosive Child,
    as well, are sufficient to overcome the de minimis defense.
    -54-
    ruling.   The district court properly determined that Greene is not
    entitled to an accounting or an injunction.    Finally, the district
    court properly denied Ablon's motion for judgment as a matter of
    law under Rule 50(b).
    Affirmed.    Each party shall bear its own costs.
    -55-
    

Document Info

Docket Number: 13-2237

Citation Numbers: 794 F.3d 133

Filed Date: 7/16/2015

Precedential Status: Precedential

Modified Date: 1/12/2023

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