Lee v. Mike's Novelties , 543 F. App'x 1010 ( 2013 )


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  •        NOTE: This disposition is nonprecedential.
    United States Court of Appeals
    for the Federal Circuit
    ______________________
    JAKE LEE,
    Plaintiff-Appellee,
    v.
    MIKE’S NOVELTIES, INC. (doing business as Mike’s
    Worldwide Imports) AND MANISCH CHANDER (also
    known as Mike Chander, Manisch Chandra, and
    Mike Chandra),
    Defendants-Appellants.
    ______________________
    2013-1049
    ______________________
    Appeal from the United States District Court for the
    Central District of California in No. 10-CV-2225, Judge
    John A. Kronstadt.
    ______________________
    Decided: November 21, 2013
    ______________________
    ANTHONY H. HANDAL, Handal & Morofsky, LLC, of
    Fairfield, Connecticut, argued for plaintiff-appellee.
    LOUIS F. TERAN, SLC Law Group, of Pasadena, Cali-
    fornia, argued for defendants-appellants.
    ______________________
    2                                   LEE   v. MIKE'S NOVELTIES
    Before DYK, MOORE, and WALLACH, Circuit Judges.
    DYK, Circuit Judge
    Defendants Mike’s Novelties, Inc., d.b.a. Mike’s
    Worldwide Imports and Manisch Chander (collectively
    “MWI”) appeal a judgment of the United States District
    Court for the Central District of California. The district
    court entered a judgment in favor of plaintiff Jake Lee
    (“Lee”) after a jury found that MWI willfully infringed the
    asserted claims of U.S. Patent No. 6,418,936 (“the ’936
    patent”), rejected claims of invalidity, and awarded
    $40,000 in lost profits. Based on the willfulness finding,
    the district court awarded Lee enhanced damages of
    $70,000 under 35 U.S.C § 284. The court also awarded
    attorney’s fees of $231,025 after making an exceptional
    case finding under 35 U.S.C. § 285 based on willful in-
    fringement and litigation misconduct. MWI appeals on
    multiple grounds, alleging, inter alia, that the district
    court erred in construing the asserted claims, and that
    the evidence was not sufficient to support the jury verdict
    of infringement. MWI also challenges the finding of
    willful infringement and the awards of enhanced damages
    and attorney fees.
    We agree with the district court’s claim construction
    and affirm the finding of infringement and no invalidity.
    However, we reverse the finding of willfulness because
    the defendant’s non-infringement arguments were not
    objectively unreasonable. We accordingly reverse the
    award of enhanced damages. Because the district court’s
    exceptional case finding relied on both the willfulness
    finding and a finding of litigation misconduct, we remand
    the case to the district court to determine whether the
    litigation misconduct considered alone would support an
    exceptional case finding and award of attorney fees.
    LEE   v. MIKE'S NOVELTIES                                 3
    BACKGROUND
    The invention claimed in Lee’s ’936 patent is a metal
    tobacco pipe designed to resemble a Colt Six Shooter
    pistol. Figure 1 of the ’936 patent, depicting the preferred
    embodiment of the claimed invention, is reproduced
    below. JA 89.
    The topmost part is a cylindrical brass turret, labeled 51,
    with multiple magazines for housing tobacco. ’936 patent
    col. 1 ll. 7-11. The turret can be rotated so that the user
    can smoke tobacco held in any of the magazines. The
    turret sits on top of the manifold, labeled 20, which is
    made of a lighter material, such as aluminum. For smoke
    to pass from the magazines of the turret to the user, the
    magazines must stay aligned with openings in the mani-
    fold, which is connected to the hollow stem, shown by
    label 12. At the end of the stem is the mouthpiece, labeled
    16. Although the turret can be rotated, it remains sta-
    tionary relative to the manifold because it “is made of
    material heavier than that of the manifold.” ’936 patent
    col. 2 ll. 11-12. The weight differential thus ensures
    consistent alignment between turret and manifold so that
    smoke can pass through the stem when the user inhales.
    The ’936 patent includes two independent claims,
    claim 1 and claim 11, which use similar language to
    4                                    LEE   v. MIKE'S NOVELTIES
    describe the functional significance of the weight differen-
    tial between the turret and manifold. The pertinent
    portion of independent claim 1 recites
    A metal tobacco pipe in its assembly comprising
    a manifold . . .
    a stem . . .
    a turret having a plurality of magazines rotatably
    mounted on said manifold . . .
    ...
    whereby any one of said magazines . . . provides
    for inhalation of tobacco smoke through . . .
    said stem wherein said turret is of heavier
    weight than the weight of said manifold, such
    that said turret remains in a stationary [posi
    tion] upon said manifold in any particular
    relative rotation between said turret and said
    manifold.
    ’936 patent col. 6 ll. 53-56. 1
    1    In full, claim 1 reads:
    1. A metal tobacco pipe in its assembly comprising
    a manifold having a body formation forming a
    port and a chamber communicating with said
    port and a recess in the body formation of said
    port,
    a stem having a bore through which tobacco
    smoke is inhaled, said stem communicating
    with said chamber,
    a turret having a plurality of magazines rotatably
    mounted on said manifold, each of said maga-
    zines communicable and aligned with said port
    and chamber by rotation of said turret to said
    manifold,
    LEE   v. MIKE'S NOVELTIES                                 5
    Independent claim 11 is limited to an improvement in
    a metal tobacco pipe with a “turret being of a heavier
    weight than that of the manifold so that both turret and
    manifold remain stationary relative to one another . . . .”
    ’936 patent col. 7 ll. 34-37. 2 Both independent claims use
    means for filtering tobacco smoke from tobacco in
    an aligned one of said magazines to said port
    and chamber seated in said recess,
    means co-extensive in and between said turret
    and manifold forming a cavity, and
    means joining together said turret and manifold
    disposed in the cavity,
    said joining means comprising
    a member having a first bearing surface
    formed therein,
    a second bearing surface formed in said turret
    abutting said first bearing surface,
    whereby the abutment between said first and
    second bearing surfaces provides a non-
    binding relationship between said turret and
    manifold, and
    means below said first bearing surface for fas-
    tening said turret to said manifold,
    whereby any one of said magazines aligned to said
    port and chamber upon rotation of turret to
    manifold provides for inhalation of tobacco
    smoke through said bore of said stem wherein
    said turret is of heavier weight than the
    weight of said manifold, such that said turret
    remains in a stationary upon said manifold in
    any particular relative rotation between said
    turret and said manifold.
    ’936 patent col. 6 ll. 22-56.
    2 In full, claim 11 reads:
    11. In a metal tobacco pipe having a hollow
    stem communicating with a manifold that in-
    6                                    LEE   v. MIKE'S NOVELTIES
    the transitional term “comprising.” ’936 patent, col. 6 l. 22
    & col. 7 l. 35.
    Lee determined that MWI was infringing the claims
    of the ’936 patent by offering to sell similar Six Shooter-
    style pipes with rotatable turrets. Lee sued MWI for
    infringement on March 26, 2010, in the United States
    District Court for the Central District of California,
    alleging, inter alia, that the defendants “used, offered for
    sale and sold tobacco pipes that infringe the [’]936 patent
    in California and nationwide.” JA 167. One of the accused
    pipes had a ball and spring assembly, which exerts addi-
    tional pressure against the turret, but the other did not.
    MWI proposed a claim construction requiring the turret to
    be “maintained in a stationary position relative to the
    manifold only by the frictional forces between the turret
    and manifold and not by a spring, pin, and/or any other
    mechanical interference.” JA 233 (emphases added). The
    district court rejected that construction. Instead, both at
    the Markman hearing and at trial, the claims were con-
    strued as written. The jury was instructed that the as-
    serted claims should be “construed as [they are] written
    and readily apparent to a person with ordinary skill in
    cludes a chamber for communicating with one of a
    plurality in a turret of magazines containing to-
    bacco for smoking, the turret fastened to and ro-
    tatably mounted on said manifold,
    the improvement comprising
    the turret being of a heavier weight than
    that of the manifold so that both turret
    and manifold remain stationary relative
    to one another after relative rotation be-
    tween them has taken place to communi-
    cate one of the magazines with the
    manifold’s chamber.
    ’936 patent col. 7 ll. 29-40.
    LEE   v. MIKE'S NOVELTIES                                7
    the art by the application of widely accepted meanings of
    commonly understood words.” JA 54.
    The jury concluded that the accused devices infringed
    claims of the ’936 patent and that MWI’s infringement
    was willful. The jury also found the asserted claims not
    invalid for enablement, best mode, obviousness, or public
    use. The court awarded enhanced damages based on the
    jury’s finding of willful infringement. The court also
    awarded attorney fees after determining that the case
    was exceptional in light of MWI’s willful infringement and
    litigation misconduct, consisting of bad faith settlement
    offers, bad faith conduct during discovery, and threats to
    report Lee’s counsel to state bar associations. MWI ap-
    pealed. We have jurisdiction pursuant to 28 U.S.C. §
    1295(a)(1).
    DISCUSSION
    I. Claim Construction
    MWI first contends that the district court’s claim con-
    struction was erroneous because it precluded the jury
    from finding non-infringement based on the fact that the
    spring and ball assembly in one of the accused devices
    kept the turret stationary instead of the weight differen-
    tial between the turret and the manifold. MWI argues
    that it was also precluded from presenting evidence and
    arguing in support of its theory of non-infringement. MWI
    asserts that, under the correct claim construction, there
    could be no infringement because the spring, not the
    weight differential, kept the turret stationary in one of
    the accused devices. Claim construction is an issue of law
    reviewed de novo. Cybor Corp. v. FAS Techs., Inc., 
    138 F.3d 1448
    , 1454-55 (Fed. Cir. 1998).
    The claim construction question turns on the meaning
    of the weight differential limitation, which in claim 1
    requires the turret to be “of heavier weight than the
    8                                   LEE   v. MIKE'S NOVELTIES
    weight of said manifold, such that said turret remains in
    a stationary [position] upon said manifold in any particu-
    lar relative rotation between said turret and said mani-
    fold.” ’935 patent col. 6 ll. 52-56. Claim 11 similarly
    describes the turret as “being of a heavier weight than
    that of the manifold so that both turret and manifold
    remain stationary relative to one another.” ’936 patent
    col. 7 ll. 36-38. At the Markman hearing, the district court
    rejected MWI’s proposed construction that the “turret is
    maintained in a stationary position relative to the mani-
    fold only by the frictional forces between the turret and
    manifold and not by a spring and/or pin.” JA 235 (em-
    phases added). The district court, both at the Markman
    hearing and in the final jury instruction, construed the
    claim language simply “as it is written.” JA 230. We see
    no error in the district court’s rejection of MWI’s proposed
    construction. 3
    The specification of Lee’s patent, like the claims
    themselves, states that “[t]he turret is made of material
    heavier than that of the manifold.” ’936 patent col. 2 ll.
    10-11. The specification also explains that “[t]he heavier
    weight of [the] turret maintains its position upon the less-
    weighted manifold whereby the desired tobacco-filled
    magazine disposed over port [in the manifold] remains
    3    Lee argues that MWI waived any challenge to the
    claim construction by not objecting to the construction in
    connection with the jury instruction. But we have held
    that raising a claim construction issue at the Markman
    hearing is sufficient to preserve the objection. See, e.g.,
    Cardiac Pacemakers, Inc. v. St. Jude Med., Inc., 
    381 F.3d 1371
    , 1381 (Fed. Cir. 2004) (“When the claim construction
    is resolved pre-trial, and the patentee presented the same
    position in the Markman proceeding as is now pressed, a
    further objection to the district court’s pre-trial ruling
    may indeed have been not only futile but unnecessary.”).
    LEE   v. MIKE'S NOVELTIES                                   9
    stationary . . . .” ’936 patent col. 5 ll. 46-50. The claims
    and specification indicate that the turret remains station-
    ary relative to the manifold because of its heavier weight
    relative to the manifold.
    Additionally, independent claims 1 and 11 use the
    transitional term “comprising.” ’936 patent col. 6 l. 22 &
    col. 7 l. 34. We have established that “[i]n the patent
    claim context[,] the term ‘comprising’ is well understood
    to mean ‘including but not limited to.’” CIAS, Inc. v.
    Alliance Gaming Corp., 
    504 F.3d 1356
    , 1360 (Fed. Cir.
    2007); see also Vivid Techs., Inc. v. Am. Sci. & Eng’g, Inc.,
    
    200 F.3d 795
    , 811 (Fed. Cir. 1999) (citing Stiftung v.
    Renishaw PLC, 
    945 F.2d 1173
    , 1178 (Fed. Cir. 1991);
    Moleculon Research Corp. v. CBS, Inc., 
    793 F.2d 1261
    ,
    1271 (Fed. Cir. 1986)). Because both independent claims 1
    and 11 use the term “comprising,” they read on devices
    that include additional features beyond those claimed.
    Based on that claim language, infringement cannot be
    avoided by adding another feature that contributes to the
    turret’s stability if the weight differential is nevertheless
    sufficient to keep the turret stationary. MWI’s proposed
    construction would have limited the claims to read on
    devices with turrets held stationary solely because of the
    weight differential. The district court did not err in reject-
    ing that construction. 4
    II. Infringement
    MWI next challenges the sufficiency of the evidence
    supporting the jury verdict of infringement. Infringement
    is a question of fact that we review for substantial evi-
    dence when tried before a jury. Teleflex, Inc. v. Ficosa N.
    Am. Corp., 
    299 F.3d 1313
    , 1323 (Fed. Cir. 2002). To find
    4 We fail to see any impropriety in Lee’s counsel’s
    stating in closing argument that “the addition of a ball
    and spring does not avoid infringement.” JA 577.
    10                                  LEE   v. MIKE'S NOVELTIES
    infringement, the finder of fact must compare the inven-
    tion claimed in the patent with the accused device. 
    Id. Substantial evidence
    requires evidence that “a reasonable
    mind might accept as adequate to support a conclusion.”
    
    Id. at 1324
    (internal quotation omitted).
    Under the claim language incorporated into the jury
    instructions, the patentee had to prove that the weight
    differential between the turret and manifold in MWI’s
    pipes, standing alone, would be sufficient to keep the
    turret stationary relative to the manifold. Although Lee
    did not introduce tests to make that showing, it intro-
    duced sufficient evidence for the jury to conduct a factual
    comparison between the claimed invention and the ac-
    cused devices. During his testimony, Lee weighed one of
    the accused devices, the pipe without the ball and spring,
    and showed that the turret weighed 68 grams and the
    manifold 55 grams, a difference of 13 grams, and testified
    that the weight differential “promoted” a stationary
    position. JA 457. Although the other accused pipe, which
    contained a ball and spring, was not weighed, the jurors
    had the opportunity to handle both pipes and compare the
    relative weights of the components for themselves. They
    could also place the turret on top of the manifold to de-
    termine whether the weight differential created stability.
    While the weight differential was not overwhelming, the
    jury had adequate evidence from which to conclude that it
    was sufficient to ensure stability. 5
    5   MWI argues that the district court violated the
    local rules in allowing Lee to assert infringement against
    the pipe without the spring, but we find no abuse of
    discretion in the district court’s determination that no
    prejudice would result from allowing the claim of in-
    fringement as to both pipes to proceed.
    LEE   v. MIKE'S NOVELTIES                                11
    MWI argues that expert testimony was required, and
    points out that Lee presented no expert testimony during
    trial. Although no experts testified, the technology in-
    volved was easily understandable and did not require
    technical expertise or specialized knowledge. Expert
    testimony is not necessary in patent cases involving
    technology that is “easily understandable.” Centricut, LLC
    v. Esab Group, Inc., 
    390 F.3d 1361
    , 1369 (Fed. Cir. 2004)
    (“[E]xpert testimony will not be necessary because the
    technology will be ‘easily understandable without the
    need for expert explanatory testimony.’”) (quoting Union
    Carbide Corp. v. Am. Can Co., 
    724 F.2d 1567
    , 1573 (Fed.
    Cir. 1984) (no expert testimony needed to explain technol-
    ogy involving plastic bags)). Here, the disputed facts
    pertained to: (1) the weight differential between the
    turret and manifold, and (2) its sufficiency in keeping the
    turret in place. No expert testimony was required to
    explain how to measure the weight differential or the fact
    that a heavier object would be more likely to remain
    stationary. The court did not err in expecting the jury to
    understand these concepts without expert testimony.
    Handling the pipes allowed jurors to estimate the weight
    differential in the pipe that the patentee did not weigh,
    and the sufficiency of the weight differential in keeping
    the turret stationary.
    As to the question of the sale of the pipe without the
    ball and spring, Lee’s employee testified that she ordered
    the Six Shooter-style pipes from MWI, and Lee stated
    that he had previously seen MWI selling a pipe without a
    ball and spring. MWI’s witness testified that he did not
    sell such a pipe, and only sold the accused pipe with a ball
    and spring. The jury could reasonably conclude, based on
    determinations about the credibility of the witnesses, that
    MWI did in fact sell such a pipe. We see no reason to
    overturn the jury’s implicit finding of fact that MWI did
    sell the accused pipe without the ball and spring.
    12                                   LEE   v. MIKE'S NOVELTIES
    While reasonable minds could have reached a differ-
    ent conclusion as to the evidence of infringement, sub-
    stantial evidence supported the jury verdict. We therefore
    affirm the judgment of infringement.
    III. Invalidity
    MWI also raises a number of arguments as to invalid-
    ity, alleging that the ’936 patent does not disclose the best
    mode of the patented invention or provide sufficient
    information to enable those skilled in the art to make and
    use the invention. It also alleges that the claimed inven-
    tion was obvious in view of the prior art and in public use
    more than a year before the ’936 patent’s effective date.
    We find those arguments to be without merit and sustain
    the jury verdicts of no invalidity on those grounds.
    IV. Enhanced Damages
    In the context of patent infringement, “an award of
    enhanced damages requires a showing of willful infringe-
    ment.” In re Seagate Tech., LLC, 
    497 F.3d 1360
    , 1368
    (Fed. Cir. 2007) (emphasis added) (citing Beatrice Foods
    Co. v. New Eng. Printing & Lithographing Co., 
    923 F.2d 1576
    , 1578 (Fed. Cir. 1991)); see also 35 U.S.C. § 284
    (permitting courts to award up to treble damages in
    enhanced damages). Although an enhanced damages
    award must be predicated on willful infringement, “a
    finding of willfulness does not require an award of en-
    hanced damages; it merely permits it.” 
    Seagate, 497 F.3d at 1368
    .
    Under Seagate, patentees must satisfy a two-pronged
    test for willfulness, one prong of which is objective, and
    the other prong of which is subjective. See, e.g., Bard
    Peripheral Vascular, Inc., v. W.L. Gore & Assoc., Inc., 
    682 F.3d 1003
    , 1006 (Fed. Cir. 2012); Powell v. Home Depot
    U.S.A., Inc., 
    663 F.3d 1221
    , 1236 (Fed. Cir. 2011). To meet
    the first prong, patentees must show “by clear and con-
    LEE   v. MIKE'S NOVELTIES                                13
    vincing evidence that the infringer acted despite an
    objectively high likelihood that its actions constituted
    infringement of a valid patent.” 
    Seagate, 497 F.3d at 1371
    .
    If the patentee satisfies that test, he must satisfy the
    second prong by showing that the accused infringer
    subjectively knew of the “objectively-defined risk” or
    should have known because the risk was so obvious. 
    Id. The objectiveness
    inquiry is a question of law reviewed de
    novo. 
    Bard, 682 F.3d at 1007
    .
    The threshold inquiry into objective recklessness
    “entails an objective assessment of potential defenses
    based on the risk presented by the patent.” 
    Id. at 1006.
    When an “accused infringer relies on a reasonable defense
    to a charge of infringement,” the risk of infringement is
    not high enough to satisfy the objective prong of the
    willfulness inquiry. Spine Solutions, Inc. v. Medtronic
    Sofamor Danek USA, Inc., 
    620 F.3d 1305
    , 1319 (Fed. Cir.
    2010) (defendant was not objectively reckless in relying on
    “reasonable” obviousness defense). Because the objective
    inquiry is a question of law, if the court decides that “the
    infringer’s reliance on a defense was not objectively
    reckless, it cannot send the question of willfulness to the
    jury.” 
    Powell, 663 F.3d at 1236
    .
    Although MWI raised a number of invalidity and non-
    infringement theories, we focus on the objective reasona-
    bleness of its infringement defense. As the district court
    explained in its summary judgment order, there was a
    “genuine issue of material fact as to whether the turret
    remains stationary because the turret is heavier than the
    manifold” and therefore infringed the limitations of
    claims 1 and 11. JA 240. MWI argued at trial that Lee
    had not proven that the weight differential between the
    manifold and turret of the accused pipes was enough to
    keep the turret stationary, as the district court’s claim
    construction required. When asked at oral argument in
    this court why it was unreasonable for MWI to argue that
    14                                   LEE   v. MIKE'S NOVELTIES
    the weight differential was insufficient to ensure stability,
    Lee’s counsel stated, “that would be a reasonable argu-
    ment.” See Oral Argument at 16:45-16:48, available at
    http://www.cafc.uscourts.gov/oral-argument-
    recordings/2013-1049/all. He offered no explanation why
    such an argument would be objectively unreasonable
    other than the fact that the jury reached the opposite
    conclusion.
    To be sure, it was reasonable for the jury to conclude
    that the turret remained stationary relative to the mani-
    fold because of the weight differential, but that does not
    make the accused infringer’s defense objectively unrea-
    sonable. In this case, the evidence was close, and the
    critical factual determinations were left in the jury’s
    hands. The verdict was supported by substantial evi-
    dence, but there was countervailing evidence to support
    the defendant’s theory as well. The weight differential
    amounted to only 13 grams, which the jury might have
    considered insufficient. Moreover, Lee only weighed one of
    the two pipes and as the above discussion indicates, the
    jury could have reasonably concluded that MWI did not
    sell that pipe. Therefore, it was reasonable for MWI to
    contest the allegation of infringement and to argue that
    the plaintiff had not proven that the “weight differential
    actually maintains the turret [in a] stationary [position]”
    in either accused device. JA 606, ll. 4-5.
    Because MWI’s defense was not objectively unreason-
    able, the first prong of the Seagate test for willfulness was
    not satisfied. Consequently, we reverse the finding of
    willful infringement. Because enhanced damages cannot
    be awarded without a finding of willfulness, we vacate the
    award of enhanced damages.
    V. Attorney’s Fees
    Section 285 provides that a “court in exceptional cases
    may award reasonable attorney fees to the prevailing
    LEE   v. MIKE'S NOVELTIES                                 15
    party.” 35 U.S.C. § 285. Determining whether to award
    attorney fees under § 285 requires a two-step analysis in
    which the court first decides whether the prevailing party
    has shown by clear and convincing evidence that the case
    is “exceptional.” Forest Labs., Inc. v. Abbot Labs., 
    339 F.3d 1324
    , 1327 (Fed. Cir. 2003). If the court makes an excep-
    tional case finding, it must then decide whether an award
    of attorney fees is appropriate. 
    Id. at 1328.
    We have
    “repeatedly identified as ‘exceptional’ those cases involv-
    ing ‘inequitable conduct before the [Patent Office]; litiga-
    tion misconduct; vexatious, unjustified, and otherwise bad
    faith litigation; a frivolous suit or willful infringement.’”
    
    Id. at 1329
    (quoting Brasseler, U.S.A. I, L.P. v. Stryker
    Sales Corp., 
    267 F.3d 1370
    , 1380 (Fed. Cir. 2001)) (altera-
    tion in original). We review the district court’s application
    of the proper legal standard de novo, its exceptional case
    finding for clear error, and its decision that attorney fees
    are appropriate for abuse of discretion. See 
    id. at 1328;
    see
    also Cybor Corp. v. FAS Tech., Inc., 
    138 F.3d 1448
    , 1460
    (Fed. Cir. 1998).
    The district court relied on both the finding of jury
    willful infringement and its finding of litigation miscon-
    duct in determining that this case was exceptional. The
    instances of litigation misconduct supporting the award of
    attorney’s fees included MWI’s bad faith settlement offers,
    bad faith conduct during discovery, and unacted-upon
    threats to report Lee’s counsel to state bar associations.
    MWI only challenges the district court’s litigation mis-
    conduct finding with respect to the settlement offers. The
    district court did not clearly err in finding that MWI’s
    “settlement offers, combined with intimidating language,
    are evidence of bad faith litigation tactics.” JA 27. Moreo-
    ver, the court only described the settlement offers as
    supporting an award of attorney’s fees. As to the allega-
    tions of bad faith during discovery and threats to report
    Lee’s counsel, the court expressly stated that these in-
    16                                   LEE   v. MIKE'S NOVELTIES
    stances of misconduct were not sufficient, standing alone,
    to justify an award of attorney’s fees.
    Although the court described MWI’s litigation mis-
    conduct as “evidenc[ing] some bad faith,” it only made an
    exceptional case finding “[a]fter considering the totality of
    the circumstances, including the jury’s finding of willful-
    ness.” JA 28. The district court thus based its exceptional
    case finding not only on findings of MWI’s litigation
    misconduct, which we sustain, but also on the finding of
    willful infringement, which, as discussed above, cannot
    stand. As a result, it is not clear that the district court
    would have considered this to be an exceptional case
    warranting an award of attorney’s fees based solely on
    MWI’s litigation misconduct.
    Therefore, we affirm the judgment of infringement
    and no invalidity, reverse the determination of willful
    infringement and award of enhanced damages, and re-
    mand to the district court to determine whether MWI’s
    litigation misconduct is independently sufficient to make
    this an exceptional case such that attorney’s fees are
    warranted.
    AFFIRMED IN PART, REVERSED IN PART, AND
    REMANDED
    Each party to bear its own costs.