D Three Enterprises, LLC v. Sunmodo Corporation , 890 F.3d 1042 ( 2018 )


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  •    United States Court of Appeals
    for the Federal Circuit
    ______________________
    D THREE ENTERPRISES, LLC,
    Plaintiff-Appellant
    v.
    SUNMODO CORPORATION,
    Defendant-Appellee
    ---------------------------------------------------------------------------------
    D THREE ENTERPRISES, LLC,
    Plaintiff-Appellant
    v.
    RILLITO RIVER SOLAR LLC, DBA ECOFASTEN
    SOLAR,
    Defendant-Appellee
    ______________________
    2017-1909, 2017-1910
    ______________________
    Appeals from the United States District Court for the
    District of Colorado in Nos. 1:15-cv-01148-CBS, 1:15-cv-
    01151-CBS, Magistrate Judge Craig B. Shaffer.
    ______________________
    Decided: May 21, 2018
    ______________________
    2                    D THREE ENTERS., LLC   v. SUNMODO CORP.
    DAVE R. GUNTER, Friedman, Suder & Cooke, Fort
    Worth, TX, argued for plaintiff-appellant. Also represent-
    ed by MICHAEL THOMAS COOKE, CORBY ROBERT VOWELL.
    SCOTT E. DAVIS, Klarquist Sparkman, LLP, Portland,
    OR, argued for defendants-appellees. Also represented by
    SARAH ELISABETH JELSEMA, TODD M. SIEGEL.
    ______________________
    Before REYNA, CLEVENGER, and WALLACH, Circuit Judges.
    WALLACH, Circuit Judge.
    Appellant D Three Enterprises, LLC (“D Three”) sued
    Appellees SunModo Corporation (“SunModo”) and Rillito
    River Solar LLC, doing business as EcoFasten Solar
    (“EcoFasten”), (together, “Appellees”) in the U.S. District
    Court for the District of Colorado (“District Court”),
    alleging infringement of various claims of U.S. Patent
    Nos. 8,689,517 (“the ’517 patent”), 9,068,339 (“the ’339
    patent”), and 8,707,655 (“the ’655 patent”) (collectively,
    the “Patents-in-Suit”). Appellees filed, inter alia, a joint
    motion for summary judgment, arguing the various
    claims were invalid based on a determination that
    D Three could not claim priority from U.S. Patent Appli-
    cation No. 61/150,301 (“the 2009 Application”), and the
    District Court granted Appellees’ Motion. See D Three
    Enters., LLC v. Rillito River Solar LLC, Nos. 15-cv-01148-
    CBS, 15-cv-01151-CBS, 
    2017 WL 1023389
    , at *1, *14 (D.
    Colo. Mar. 15, 2017); J.A. 31−34 (Final Judgments),
    2212−48 (2009 Application). 1
    1  The District Court invalidated claims 1−4, 6,
    9−14, and 16 of the ’517 patent; claims 1−9, 11, and 13 of
    the ’655 patent; and claims 1−2 and 4−10 of the ’339
    patent (“the Asserted Claims”). See D Three, 
    2017 WL 1023389
    , at *2, *13. It deemed the validity of claim 3 of
    D THREE ENTERS., LLC   v. SUNMODO CORP.                    3
    D Three appeals. We have jurisdiction pursuant to
    28 U.S.C. § 1295(a)(1) (2012). We affirm.
    BACKGROUND
    The Patents-in-Suit are directed to roof mount sealing
    assemblies, which allow users to mount objects on a roof
    and seal “the mounting location . . . against water.” ’517
    patent, Abstract; ’655 patent, Abstract; see ’339 patent,
    Abstract. For example, the ’517 patent claims, inter alia,
    “[a] roof standoff device for use in mounting an object to a
    roof” comprising “a base bracket,” “a flashing,” 2 “a core
    body,” and “a second threaded attachment element.” ’517
    patent col. 10 ll. 27−29, 33, 43, 45 (claim 1). It is undis-
    puted that: SunModo’s allegedly infringing products were
    available to the public in 2010; EcoFasten’s allegedly
    infringing product was available to the public in June
    2009, 3 see D Three, 
    2017 WL 1023389
    , at *13 & n.16; and
    the ’339 patent moot in light of D Three no longer assert-
    ing infringement of the claim and omitting the claim from
    oral argument, see 
    id. at *13,
    and that finding is not
    challenged on appeal, see generally Appellant’s Br.; Appel-
    lees’ Br.
    2   The flashing is a piece that “exist[s] to seal pene-
    trations on roofs.” ’517 patent col. 1 ll. 20–21.
    3   D Three initially alleged four of EcoFasten’s roof
    mounting products infringed the Patents-in-Suit, see
    D Three, 
    2017 WL 1023389
    , at *2 (listing allegations
    against EcoFasten’s QuikFoot Roof Mount System, Eco-65
    System, Tile Flashing System, and Eco-44R-NDD Sys-
    tem), but attempted to withdraw its allegations based on
    all but the QuikFoot Roof Mount System during suit, see
    
    id. at *13;
    see also Reply Br. in Supp. of Mot. for Summ. J.
    7, D Three Enters., LLC v. Rillito River Solar LLC, 1:15-
    cv-01148-CBS (D. Colo. Oct. 14, 2016), ECF No. 77 (argu-
    ing D Three’s requested withdrawal of infringement
    allegations is not valid absent D Three “formally amend-
    4                    D THREE ENTERS., LLC   v. SUNMODO CORP.
    the U.S. Patent and Trademark Office issued the Patents-
    in-Suit in 2014 and 2015. To successfully assert the
    Patents-in-Suit against the allegedly infringing products,
    D Three was required to claim priority from the 2009
    Application’s effective filing date, February 5, 2009. See
    
    id. at *3,
    *13; J.A. 2212.
    On summary judgment, the District Court determined
    that the Asserted Claims could not claim priority from the
    2009 Application because they were broader than the
    invention disclosed in the 2009 Application, such that
    they did not meet the written description requirement
    pursuant to 35 U.S.C. § 112(a) (2012). 4 See D Three, 
    2017 WL 1023389
    , at *5, *9−10, *12. Specifically, the District
    Court divided the Asserted Claims into two categories––
    claims that recited a washer and claims that did not––and
    asked whether “the parent applications disclose roof
    mount assemblies that (a) do not have a soft washer but
    also do not limit the type of attachment bracket, and
    (b) have a soft washer but do not limit its location.” 
    Id. at *7.
    The District Court held that the 2009 Application’s
    only disclosure of a washerless assembly “requir[ed a]
    W[-]pronged attachment bracket 1700,” but the Asserted
    Claims disclosed broader configurations of washerless
    ing its pleadings”); J.A. 3791 (explaining, by the District
    Court, that it was not sure D Three’s attempts to narrow
    infringement allegations were “adequate,” “sufficient,” or
    “definitive”).
    4    Congress amended § 112 when it enacted the
    Leahy-Smith America Invents Act (“AIA”), Pub. L. No.
    112-29, § 4(c), 125 Stat. 284, 296−97 (2011), and AIA
    § 4(e) made those changes applicable to “any patent
    application that is filed on or after” September 16, 2012,
    see 
    id. at 297.
    Because the applications that led to the
    Patents-in-Suit were filed after September 16, 2012, the
    post-AIA version of § 112 applies.
    D THREE ENTERS., LLC   v. SUNMODO CORP.                  5
    assemblies. 
    Id. at *10;
    see J.A. 2225 (discussing the
    washerless assembly in the 2009 Application), 2246
    (Figure 41). The District Court also held that the 2009
    Application’s assemblies with washers only disclosed
    washers situated “above the flashing,” but the Asserted
    Claims covered assemblies with washers below the flash-
    ing. D Three, 
    2017 WL 1023389
    , at *11, *12. D Three did
    “not dispute that without the benefit of the 2009
    [A]pplication’s filing date . . . the [P]atents[-]in[-S]uit
    would be invalid due to intervening prior art,” i.e., Sun-
    Modo’s allegedly infringing products and EcoFasten’s
    QuikFoot Roof Mount System. 
    Id. at *13.
    Accordingly,
    the District Court invalidated all but one of the Asserted
    Claims as anticipated based on D Three’s stipulation, and
    found the remaining claim (claim 6 of the ’655 patent)
    asserted against the purportedly-withdrawn EcoFasten’s
    Tile Flashing System anticipated based on other prior art
    that post-dated the 2009 Application. Id.; J.A. 2772–811,
    2813–44. 5
    DISCUSSION
    D Three argues the District Court erred in granting
    summary judgment because a genuine issue of material
    fact exists as to whether the 2009 Application adequately
    discloses the Asserted Claims of the Patents-in-Suit. See
    Appellant’s Br. 21−34. Specifically, D Three avers that
    the 2009 Application adequately discloses (1) washerless
    assemblies with “various attachment brackets,” 
    id. at 27,
    such that there is a genuine issue as to whether a person
    having ordinary skill in the art (“PHOSITA”) would
    understand the 2009 Application to have disclosed differ-
    ent types of washerless assemblies, and (2) assemblies
    5    D Three also asserted claim 6 of the ’339 patent
    against only the Tile Flashing System, see J.A. 342−46,
    but this claim was not addressed separately below, see
    generally D Three, 
    2017 WL 1023389
    .
    6                    D THREE ENTERS., LLC   v. SUNMODO CORP.
    with washers below the flashing, 
    id. at 32−34.
    6 After
    articulating the applicable standards of review and legal
    standard, we address each issue in turn.
    I. Standards of Review
    In reviewing the grant of motions for summary judg-
    ment, we apply the law of the regional circuit, see AbbVie
    Deutschland GmbH & Co., KG v. Janssen Biotech, Inc.,
    
    759 F.3d 1285
    , 1295 (Fed. Cir. 2014), here, the Tenth
    Circuit. The Tenth Circuit reviews a grant of summary
    judgment de novo. See Birch v. Polaris Indus., Inc., 
    812 F.3d 1238
    , 1251 (10th Cir. 2015). Summary judgment is
    appropriate “if the movant shows that there is no genuine
    dispute as to any material fact and the movant is entitled
    to judgment as a matter of law.” Fed. R. Civ. P. 56(a); see
    
    Birch, 812 F.3d at 1251
    . At summary judgment, “[t]he
    evidence of the non-movant is to be believed, and all
    justifiable inferences are to be drawn in his favor.” An-
    derson v. Liberty Lobby, Inc., 
    477 U.S. 242
    , 255 (1986); see
    Argo v. Blue Cross & Blue Shield of Kan., Inc., 
    452 F.3d 1193
    , 1199 (10th Cir. 2006).
    6    D Three also contests the District Court’s alterna-
    tive finding that the 2009 Application did not disclose a
    base “having at least one mounting hole.” Appellant’s
    Br. 34; see 
    id. at 34−36;
    see also D Three, 
    2017 WL 1023389
    , at *12 n.15 (“The 2009 [A]pplication also does
    not support the ’517 and ’339 patents . . . because the
    [2009 A]pplication discloses only mounting holes, plu-
    ral.”). Because we affirm the District Court based on lack
    of adequate written description for the washerless assem-
    blies and position of the flashing on the assemblies with
    washers, see infra Sections II.B.2–C, we decline to reach
    this alternative finding, cf. Watts v. XL Sys., Inc., 
    232 F.3d 877
    , 879 & n.1 (Fed. Cir. 2000) (declining to address
    alternative grounds of invalidity).
    D THREE ENTERS., LLC   v. SUNMODO CORP.                   7
    For issues unique to patent law, such as determina-
    tion of priority date, we apply Federal Circuit law. See
    
    AbbVie, 759 F.3d at 1295
    ; see, e.g., Go Med. Indus. Pty.,
    Ltd. v. Inmed Corp., 
    471 F.3d 1264
    , 1270–72 (Fed. Cir.
    2006) (applying Federal Circuit precedent to claim of
    priority date). “Compliance with the written description
    requirement [of 35 U.S.C. § 112(a)] is a question of fact
    but is amenable to summary judgment in cases where no
    reasonable fact finder could return a verdict for the non-
    moving party.” PowerOasis, Inc. v. T-Mobile USA, Inc.,
    
    522 F.3d 1299
    , 1307 (Fed. Cir. 2008).
    II. The Patents-in-Suit Cannot Claim Priority from the
    2009 Application
    A. Legal Standards
    Pursuant to 35 U.S.C. § 120, 7
    [a]n application for patent for an invention dis-
    closed in the manner provided by [§] 112(a) . . . in
    an application previously filed in the United
    States . . . which names an inventor or joint in-
    ventor in the previously filed application shall
    have the same effect, as to such invention, as
    though filed on the date of the prior application.
    Section 112(a) requires that
    [t]he specification shall contain a written descrip-
    tion of the invention, and of the manner and pro-
    cess of making and using it, in such full, clear,
    concise, and exact terms as to enable [a
    7    Congress amended § 120 when it passed the AIA,
    which governs the Patents-in-Suit, but the language at
    issue here was not changed. See AIA §§ 3(f), 15(b), 125
    Stat. at 288, 328 (specifying the respective effective dates
    of the amendments to § 120).
    8                     D THREE ENTERS., LLC   v. SUNMODO CORP.
    PHOSITA] to which it pertains . . . to make and
    use the same.
    The written description “must clearly allow [a PHOSITA]
    to recognize that the inventor invented what is claimed,”
    such that “the disclosure of the application relied upon
    reasonably conveys to [a PHOSITA] that the inventor had
    possession of the claimed subject matter as of the filing
    date.” Ariad Pharm., Inc. v. Eli Lilly & Co., 
    598 F.3d 1336
    , 1351 (Fed. Cir. 2010) (en banc) (emphasis added)
    (internal quotation marks, brackets, and citations omit-
    ted). “[T]he hallmark of written description is disclosure.”
    
    Id. “This inquiry
    . . . is a question of fact,” which “var[ies]
    depending on the context” and “requires an objective
    inquiry into the four corners of the specification from the
    perspective of a [PHOSITA].” 
    Id. (citations omitted).
    Demonstrating adequate written description “requires a
    precise definition” of the invention. 
    Id. at 1350.
    Relevant
    here, to claim a genus, a patentee must disclose “a repre-
    sentative number of species falling within the scope of the
    genus or structural features common to the members of
    the genus so that [a PHOSITA] can visualize or recognize
    the members of the genus.” 
    Id. (internal quotation
    marks
    and citation omitted); see Amgen Inc. v. Sanofi, 
    872 F.3d 1367
    , 1373–74 (Fed. Cir. 2017) (applying Ariad to a
    claimed genus).
    B. The 2009 Application Lacks Adequate Written Descrip-
    tion for the Washerless Assemblies in the Asserted
    Claims
    All Asserted Claims except claim 8 of the ’655 patent
    and claim 4 of the ’339 patent recite washerless assem-
    blies. See ’517 patent col. 10 ll. 27−67 (claims 1−4), col. 11
    ll. 8−15 (claim 6), col. 11 l. 29−col. 12 l. 25 (claims 9−14),
    col. 12 ll. 29−31 (claim 16); ’655 patent col. 10 l. 28−col. 11
    l. 12 (claims 1−7), col. 11 ll. 17−21 (claim 9), col. 12
    ll. 11−13 (claim 11), col. 12 ll. 19−20 (claim 13); ’339
    patent col. 10 l. 47−col. 11 l. 14 (claims 1−2), col. 11
    D THREE ENTERS., LLC   v. SUNMODO CORP.                     9
    l. 27−col. 12 l. 3 (claims 5−10) (collectively, the “Washer-
    less Claims”). Instead of washers, the Washerless Claims
    recite, for instance, the use of any “attachment bracket
    having a third attachment element disposed on an upper
    portion of said attachment bracket for attaching an object
    to said attachment bracket.” ’339 patent col. 11 ll. 8−10
    (claim 1); see, e.g., ’517 patent col. 10 ll. 29−32 (claim 1);
    ’655 patent col. 10 ll. 29−34 (claim 1). 8
    The District Court determined that the 2009 Applica-
    tion disclosed one washerless assembly, depicted in Fig-
    ures 27−33 and 41. D Three, 
    2017 WL 1023389
    , at *8.
    The District Court then found that, “[i]n all of the applica-
    tions” in the priority chain for the Patents-in-Suit, includ-
    ing the 2009 Application, “the washerless assembly
    consistently has one type of attachment bracket: no.
    1700,” which is defined as “having W-shaped
    prongs . . . and [a] face seat . . . that can hold a support
    post . . . in a conventional male/female interaction when
    needed.” 
    Id. at *9
    (internal quotation marks and citation
    omitted). The District Court determined that a PHOSITA
    would not understand bracket 1700 to be an “optional
    feature.” 
    Id. at *10.
    The parties do not dispute that the
    Washerless Claims’ recitation of attachment assemblies
    “are not limited to assemblies using attachment brackets
    with the W[-]shaped prongs.” 
    Id. at *9
    ; see Appellant’s Br.
    8   For purposes of summary judgment, the District
    Court inferred in D Three’s favor that the disclosure of a
    “third attachment element,” rather than bracket, in the
    Washerless Claims of the ’517 and ’655 patents was
    equivalent to an attachment bracket, D Three, 
    2017 WL 1023389
    , at *9 n.8 (emphasis added), and so will we, see
    
    Anderson, 477 U.S. at 255
    (assuming facts in favor of non-
    moving party at summary judgment); In re Mouttet, 
    686 F.3d 1322
    , 1330 (Fed. Cir. 2012) (“The scope and content
    of the prior art . . . are determinations of fact.”).
    10                   D THREE ENTERS., LLC   v. SUNMODO CORP.
    7−8; Appellees’ Br. 35. Therefore, the District Court held
    that because the Washerless Claims “are not limited to
    such a bracket[,] the [Washerless C]laims are not sup-
    ported by the 2009 [A]pplication and are not entitled to
    the 2009 effective filing date.”      D Three, 
    2017 WL 1023389
    , at *10. For the reasons set forth below, we
    agree with the District Court.
    1. The Attachment Bracket Disclosure Was Properly
    Decided on Summary Judgment
    As an initial matter, D Three argues that the District
    Court erred because it acknowledged that Appellees “d[id]
    not specifically argue” that the 2009 Application lacked
    sufficient detail to disclose attachment brackets broadly,
    Appellant’s Br. 23 (quoting D Three, 
    2017 WL 1023389
    , at
    *9 n.8 (“[Appellees] recognize that Figure 41 regards the
    bracket 1700 but do not specifically argue that the [Wash-
    erless C]laims are generic on attachment brackets and
    therefore not supported.”)), and “[i]t is not appropriate to
    grant summary judgment based on facts the moving party
    did not rely on, at least without giving the losing party
    advance notice and an opportunity to be heard,” id.; see
    
    id. (citing Fed.
    R. Civ. P. 56(f)). The grant of summary
    judgment was appropriate.
    Federal Rule of Civil Procedure 56(f) states that,
    “[a]fter giving notice and a reasonable time to respond,
    the court may: . . . (2) grant the motion [for summary
    judgment] on grounds not raised by a party.” The Tenth
    Circuit will not reverse for failure to comply with Rule
    56(f) “absent evidence of prejudice. So long as the losing
    party was on notice that it had to come forward with all of
    its evidence, a sua sponte grant of summary judgment
    may be appropriate.” First Am. Kickapoo Operations,
    L.L.C. v. Multimedia Games, Inc., 
    412 F.3d 1166
    , 1170
    (10th Cir. 2005) (internal quotation marks and citations
    omitted). In other words, “[a] party is procedurally preju-
    diced if it is surprised by the district court’s action and
    D THREE ENTERS., LLC   v. SUNMODO CORP.                  11
    that surprise results in the party’s failure to present
    evidence in support of its position.” Kannady v. City of
    Kiowa, 
    590 F.3d 1161
    , 1170 (10th Cir. 2010) (internal
    quotation marks and citation omitted). Moreover, the
    Tenth Circuit distinguishes cases like this, where a sum-
    mary judgment motion was filed, from those where the
    district court sua sponte grants summary judgment,
    because “when one party has made a motion for summary
    judgment, the failure of the court to provide notice may
    not be as detrimental since the moving party is at least
    aware that the issue has been raised.” 
    Id. at 1170
    n.8
    (internal quotation marks and citation omitted).
    Here, D Three “cannot demonstrate prejudice because
    [it] clearly knew” the scope of the 2009 Application’s
    disclosure of washerless assemblies “would be an issue,”
    and it “had a full opportunity to present evidence to
    support [its] position.” 
    Id. at 1171.
    Appellees’ Motion for
    Summary Judgment provided D Three with notice that
    Appellees were arguing lack of benefit from an earlier
    filing date, particularly based on the theory that D Three
    claimed “different, broader inventions,” J.A. 2181 (capital-
    ization modified), including those with “[w]asherless
    assemblies,” J.A. 2182; see J.A. 2187−88 (describing, in
    the Motion for Summary Judgment, case law rejecting
    validity of patents claiming broader inventions than
    disclosed), 2192−93 (disputing the 2009 Application’s
    disclosure of washerless assemblies). Moreover, a “pa-
    tentee bears the burden of establishing that its claimed
    invention is entitled to an earlier priority date than an
    asserted prior art reference.” In re Magnum Oil Tools
    Int’l, Ltd., 
    829 F.3d 1364
    , 1376 (Fed. Cir. 2016). There-
    fore, D Three was “on notice that [it] needed to present
    [its] entire argument and all [its] evidence regarding” why
    the Patents-in-Suit could claim the earlier filing date from
    receipt of the Motion for Summary Judgment, Evers v.
    Regents of Univ. of Colo., 
    509 F.3d 1304
    , 1309 (10th Cir.
    12                    D THREE ENTERS., LLC   v. SUNMODO CORP.
    2007), and had ample opportunity to respond to the
    Motion for Summary Judgment in the normal course.
    In fact, D Three did respond, arguing why it believed
    washerless assemblies were adequately disclosed. See
    J.A. 3353−57. In reply, Appellees further explained their
    argument and pointed directly to the disclosure of bracket
    1700. See J.A. 3647−50 (reply to D Three’s response to
    the Motion for Summary Judgment), 3778 (hearing on
    summary judgment). In addition, Appellees informed the
    District Court that D Three had not responded to cases
    showing that differences in the breadth of disclosure from
    an earlier patent application could not satisfy the written
    description requirement, see J.A. 3780, an argument to
    which D Three responded during the hearing on the
    Motion for Summary Judgment, see J.A. 3780 (stating, by
    D Three’s counsel, in response to Appellees’ cases on
    breadth of claims, that “I think we cited cases that we
    think align with the facts and we may disagree on what
    those are”). D Three had its opportunity to show why a
    genus of attachment brackets is described by a single
    attachment bracket shown in the 2009 Application, and
    failed to make that showing. Because D Three was on
    notice that it needed to submit evidence to show that the
    washerless assemblies disclosed in the Washerless Claims
    were adequately described in the 2009 Application and
    had opportunities to do so, see 
    Kannady, 590 F.3d at 1170
    ,
    we will not find a violation of Rule 56(f) here, cf. Massey v.
    Del Labs., Inc., 
    118 F.3d 1568
    , 1573 (Fed. Cir. 1997)
    (interpreting Rule 56 in a patent case under Ninth Circuit
    law and finding error where the district court granted
    judgment on obviousness, but only anticipation had been
    asserted).
    2. The District Court Properly Granted Summary Judg-
    ment for Appellees on the Washerless Claims
    We now turn to the merits of the District Court’s deci-
    sion. “[D Three] does not dispute that except for claim 8
    D THREE ENTERS., LLC   v. SUNMODO CORP.                 13
    of the ’655 patent and claim 4 of the ’339 patent, the
    [A]sserted [C]laims do not recite a . . . washer.” D Three,
    
    2017 WL 1023389
    , at *7. See generally Appellant’s Br.
    D Three argues that Figures 27−33 and 41 of the 2009
    Application disclose a washerless assembly. See Appel-
    lant’s Br. 21. Figure 41 shows a finished roof mount
    assembly embodiment from a side angle, J.A. 2246, and
    Figures 27−33 provide additional detail of the bracket
    used in Figure 41, J.A. 2240−41. Figure 41 does not show
    a washer, as Appellees admit, see Appellees’ Br. 25 (“No
    view of the figures in the 2009 Application shows the
    configuration of the bottom of the bracket 1700 in the
    Figure 41 embodiment where a washer and recess would
    be.”), and nothing in Figure 41’s narrative description
    suggests Figure 41 must have a washer, see J.A. 2225
    (describing Figure 41 as a “base” supporting a “bolt” that
    holds “bracket 1700” onto a “flashing”). Therefore, for
    purposes of summary judgment, we draw all reasonable
    inferences in the light most favorable to D Three, Ander-
    
    son, 477 U.S. at 255
    , and find that the 2009 Application
    discloses one embodiment of a washerless assembly
    depicted in Figures 27−33 and 41 and their corresponding
    descriptions in the specification.
    Having determined that the 2009 Application disclos-
    es a washerless assembly, we must determine whether a
    PHOSITA would recognize “upon reading the [2009
    Application]” that any attachment brackets as claimed in
    the Washerless Claims could be used in washerless as-
    semblies. In re Owens, 
    710 F.3d 1362
    , 1368 (Fed. Cir.
    2013). We agree with the District Court that washerless
    assemblies using attachments other than attachment
    bracket 1700, which has “W[-]shaped prongs,” J.A. 2223,
    are not adequately disclosed, because the 2009 Applica-
    tion in no way contemplates the use of other types of
    attachment brackets in a washerless assembly, see
    J.A. 2212−46 (failing to disclose in the 2009 Application
    any other washerless assemblies). The 2009 Application
    14                   D THREE ENTERS., LLC   v. SUNMODO CORP.
    never uses the term washerless, or describes any other
    types of attachment brackets that could be used in the
    claimed roof mount assemblies.          See J.A. 2212−46.
    D Three’s admission that “[t]here are no statements in the
    2009 Application . . . that suggest the various attachment
    brackets cannot be used in a washerless system,” Appel-
    lant’s Br. 27 (emphasis added), further supports our
    finding. As we have stated, “[i]t is not sufficient for
    purposes of the written description requirement of § 112
    that the disclosure, when combined with the knowledge in
    the art, would lead one to speculate as to the modifica-
    tions that the inventor might have envisioned, but failed
    to disclose.” Lockwood v. Am. Airlines, Inc., 
    107 F.3d 1565
    , 1572 (Fed. Cir. 1997); see 
    Amgen, 872 F.3d at 1374
    .
    D Three points to language in the 2009 Application’s
    specification as evidence that the 2009 Application dis-
    closed alternative attachment brackets. See Appellant’s
    Br. 28. Specifically, D Three identifies a statement that
    “[PHOSITAs] will recognize certain modifications, permu-
    tations, additions and sub-combinations therefore. It is
    therefore intended that the following appended claims
    hereinafter introduced are interpreted to include all such
    modifications,    permutations,    additions and sub-
    combinations are within their true sprit [sic] and scope.”
    
    Id. (second alteration
    in original) (quoting J.A. 2225).
    This boilerplate language at the end of the 2009 Applica-
    tion’s specification is not sufficient to show adequate
    disclosure of the actual combinations and attachments
    used in the Washerless Claims. See Knowles Elecs. LLC
    v. Cirrus Logic, Inc., 
    883 F.3d 1358
    , 1367−68 (Fed. Cir.
    2018) (finding lack of adequate written description where
    only general soldering was disclosed in a specification, but
    claims disclosed a specific means of soldering).
    D Three also incorrectly claims that this case is “anal-
    ogous” to our non-precedential decision in Cordis Corp. v.
    Boston Scientific Corp. Appellant’s Br. 29 (citing 188 F.
    App’x 984 (Fed. Cir. 2006)); see 
    id. at 29−31.
    In Cordis,
    D THREE ENTERS., LLC   v. SUNMODO CORP.                  15
    we found adequate written description where there was
    “no doubt” that prior art disclosed two inventive compo-
    nents, and the question was whether the disclosure
    provided adequate written description for asserted claims
    that were “directed to one of those inventive components
    and not to the other.” 188 F. App’x at 990. Here, by
    contrast, the 2009 Application discloses one inventive
    component, and the Washerless Claims claim entirely
    different inventive components in the same field. Com-
    pare J.A. 2246 (Figure 41’s washerless assembly using a
    W-shaped prong), with ’339 patent col. 11 ll. 8−9 (reciting
    in claim 1 a washerless assembly using an “attachment
    bracket having a third attachment element disposed on
    an upper portion of said attachment bracket”). Cordis is
    inapposite.
    Testimony from D Three’s expert does not convince us
    otherwise. D Three admits that its expert “did not specif-
    ically address why a washerless roof mount assembly that
    uses other attachment brackets than Figure 41 is dis-
    closed.”    Appellant’s Br. 32 (emphasis added); see
    J.A. 3570−74 (expert’s declaration). “[C]onclusory expert
    assertions do not give rise to a genuine issue of material
    fact.” Streck, Inc. v. Research & Diagnostic Sys., Inc., 
    665 F.3d 1269
    , 1290 (Fed. Cir. 2012). For these reasons, we
    agree with the District Court that all Washerless Claims
    lack sufficient written description, meaning they cannot
    claim priority from the 2009 Application. All Washerless
    Claims except claim 6 of the ’339 patent and claim 6 of the
    ’655 patent are therefore invalid by stipulation, see D
    Three, 
    2017 WL 1023389
    , at *13, and we affirm the Dis-
    trict Court’s holding that claim 6 of the ’339 patent and
    claim 6 of the ’655 patent are invalid because D Three
    does not separately challenge the District Court’s deter-
    minations with respect to these claims, see 
    id. (discussing evidence
    that certain post-2009 Application prior art
    16                   D THREE ENTERS., LLC   v. SUNMODO CORP.
    anticipated or made obvious all claims of the ’655 and ’339
    patents). See generally Appellant’s Br. 9
    C. The 2009 Application Lacks Adequate Written Descrip-
    tion for the Assemblies with Washers in the Asserted
    Claims
    At issue is the District Court’s determination that the
    2009 Application disclosed a washer “only above the
    flashing,” D Three, 
    2017 WL 1023389
    , at *11, such that it
    did not provide adequate written description for the
    inventions recited in claim 8 of the ’655 patent and claim
    4 of the ’339 patent, 
    id. at *12.
    Claim 8 of the ’655 patent
    and claim 4 of the ’339 patent recite an assembly with a
    washer. See ’655 patent col. 11 ll. 12−16; ’339 patent
    col. 11 ll. 21−26. In claim 8 of the ’655 patent, the washer
    is placed “between” the bracket attached to the roof and a
    recess in the bottom surface of a sheet member and also
    “at least partially surrounds [an] aperture.” ’655 patent
    col. 11 ll. 13−15. Claim 4 of the ’339 patent depends from
    9   The District Court found that the validity of claim
    6 of the ’655 patent “appear[ed] moot” but, to the extent it
    was still argued, was invalid. See D Three, 
    2017 WL 1023389
    , at *13. Because D Three does not argue the
    validity of the claim should be moot or make any mention
    of the specific claim, see generally Appellant’s Br., we do
    not consider the claim moot and instead consider the
    District Court’s determination of invalidity, see Glaxo
    Grp. Ltd. v. TorPharm, Inc., 
    153 F.3d 1366
    , 1371 (Fed.
    Cir. 1998) (stating an appellate court may affirm a judg-
    ment “on any ground the law and the record will sup-
    port”); cf. Studiengesellschaft Kohle, M.B.H. v. Shell Oil
    Co., 
    112 F.3d 1561
    , 1565–66 (Fed. Cir. 1997) (considering
    the validity of a claim alleged to have been “implicitly
    dropped” because “[t]he record does not reveal, nor does
    the district court offer, any valid reason for declining to
    consider” it).
    D THREE ENTERS., LLC   v. SUNMODO CORP.                 17
    claim 2, which depends from claim 1, and recites the
    device of claim 2 with the addition of a “washer disposed
    around [an] aperture in [a] flashing, wherein said soft
    washer surrounds said aperture in said flashing and is
    compressed upon said first and second threaded attach-
    ment elements being threadably engaged.” ’339 patent
    col. 11 ll. 22−26 (emphasis added).
    D Three does not contest the District Court’s finding
    that “[c]laim 8 requires the washer be[] located below the
    flashing and [c]laim 4 recites a washer that can be either
    above or below the flashing,” Appellant’s Br. 32; see
    D Three, 
    2017 WL 1023389
    , at *11−12, or that the 2009
    Application discloses a washer only above the flashing, see
    Appellant’s Br. 33. Instead, D Three contends the 2009
    Application provides adequate written description be-
    cause it discloses “a washerless system . . . as well as a
    system in which a washer is shown above the flashing.”
    
    Id. The disclosure
    of a washerless system does not sup-
    port a finding of adequate written description because it
    does not show that the inventor “invented what is
    claimed,” here, an assembly with a washer. 
    Ariad, 598 F.3d at 1351
    (internal quotation marks and citation
    omitted). D Three also states that “[n]owhere in the
    specification is there a disclaimer that would require the
    washer to be atop the flashing as opposed to below.”
    Appellant’s Br. 33. Again, adequate written description
    does not ask what is permissible, rather, it asks what is
    disclosed. See 
    Ariad, 598 F.3d at 1351
    . The lack of any
    disclosure of an assembly with a washer below the flash-
    ing, or statement on the flexibility of the position of the
    washer, is fatal to D Three’s argument. Therefore, we
    conclude that claim 8 of the ’655 patent and claim 4 of the
    ’339 patent lack sufficient written description in the 2009
    Application, meaning they cannot claim priority from the
    2009 Application and are therefore invalid. See D Three,
    
    2017 WL 1023389
    , at *13.
    18                    D THREE ENTERS., LLC   v. SUNMODO CORP.
    CONCLUSION
    We have considered the parties’ remaining arguments
    and find them unpersuasive. 10 Accordingly, the Final
    Judgments of the U.S. District Court for the District of
    Colorado are
    AFFIRMED
    10 Appellees alternatively argue we may find all
    claims asserted against the purportedly-abandoned
    EcoFasten products anticipated because D Three did not
    properly abandon its claims against those products, 
    see supra
    n.3, meaning D Three’s infringement accusations
    act as a “judicial admission” of invalidity, Appellees’ Br. 2,
    11; see 
    id. at 59
    (citing to cases holding that an “accusa-
    tion that a product infringes satisfies [the] burden of
    proving that [a] product’s . . . sales anticipate” if the
    product is considered prior art). Like the District Court,
    we find “it is unnecessary to reach that issue.” D Three,
    
    2017 WL 1023389
    , at *13; see 
    Watts, 232 F.3d at 879
    (following the district court and declining to address an
    alternative argument when we could affirm based on
    issues considered below).