Dako Denmark A/S v. Leica Biosystems Melbourne Party Ltd. ( 2016 )


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  •           NOTE: This disposition is nonprecedential.
    United States Court of Appeals
    for the Federal Circuit
    ______________________
    DAKO DENMARK A/S,
    Appellant
    v.
    LEICA BIOSYSTEMS MELBOURNE PARTY LTD.,
    Appellee
    ______________________
    2015-1997
    ______________________
    Appeal from the United States Patent and Trademark
    Office, Patent Trial and Appeal Board in Nos. 95/001,613,
    95/001,692.
    -----------------------------------------------------------------------
    DAKO DENMARK A/S,
    Appellant
    v.
    LEICA BIOSYSTEMS MELBOURNE PARTY LTD.,
    Appellee
    ______________________
    2016-1000
    ______________________
    2          DAKO DENMARK A/S   v. LEICA BIOSYSTEMS MELBOURNE
    Appeal from the United States Patent and Trademark
    Office, Patent Trial and Appeal Board in No. 95/001,671.
    ______________________
    Decided: December 2, 2016
    ______________________
    JOHN M. GRIEM, JR., Carter Ledyard & Milburn LLP,
    New York, NY, argued for appellant. Also represented by
    THEODORE YOUNG MCDONOUGH.
    DAVID G. MANGUM, Parsons Behle & Latimer, Salt
    Lake City, UT, argued for appellee. Also represented by
    C. KEVIN SPEIRS; DANA M. HERBERHOLZ, Boise, ID.
    ______________________
    Before PROST, Chief Judge, REYNA and HUGHES, Circuit
    Judges.
    PROST, Chief Judge.
    These appeals arise from two inter partes reexamina-
    tions that invalidated the challenged claims of U.S. Pa-
    tent No. 7,217,392 (“’392 patent”) and a continuation of
    that patent, 
    U.S. Patent No. 7,553,672
     (“’672 patent”). In
    those reexaminations, the United States Patent and
    Trademark Office, Patent Trial and Appeal Board
    (“Board”) determined that the claims of the ’392 patent
    are invalid as obvious under 
    35 U.S.C. § 103
     and that the
    claims of the ’672 patent are invalid as anticipated under
    
    35 U.S.C. § 102
     and obvious under 
    35 U.S.C. § 103
    . On
    appeal, Dako Denmark A/S (“Dako”) challenges the
    Board’s determinations with respect to claim 7 of the ’392
    patent and claim 2 of the ’672 patent. For the reasons
    discussed below, we affirm.
    DAKO DENMARK A/S   v. LEICA BIOSYSTEMS MELBOURNE          3
    BACKGROUND
    I
    Dako is the assignee of both the ʼ392 patent and the
    ’672 patent. On May 3, 2011, Leica Biosystems Mel-
    bourne Party Ltd. (“Leica”) filed a request for inter partes
    reexamination of the ʼ392 patent. Shortly thereafter, Leica
    filed a second request regarding the ’392 patent. The
    Board granted both requests and subsequently merged
    the reexaminations. Upon reexamination, the patent
    examiner rejected all the issued claims of the ’392 patent.
    Dako only appealed the examiner’s rejection of independ-
    ent claim 7 to the Board. On appeal, the Board affirmed
    the examiner’s rejection, concluding that the claim was
    obvious based on the combination of two prior art refer-
    ences—
    U.S. Patent No. 5,439,649
     (“Tseung”), and 
    U.S. Patent No. 5,273,905
     (“Muller”).
    On June 29, 2011, Leica requested inter partes reex-
    amination of the ’672 patent. After reexamination, the
    examiner rejected four of the issued claims. Dako only
    appealed the rejection of dependent claim 2 to the Board.
    On appeal, the Board affirmed the examiner’s rejection,
    concluding that the claim was both anticipated by Tseung
    and obvious based on Tseung.
    Dako now appeals the Board’s decisions. We have ju-
    risdiction under 
    28 U.S.C. § 1295
    (a)(4)(A).
    We address each patent in turn.
    II
    The ’392 patent relates to slide staining devices “for
    the application and removal of reagents to biologic tissue
    sections mounted on microscope slides.” ʼ392 patent col. 2
    ll. 7–9. Slide staining is a tool used to aid in the micro-
    scopic examination of tissue samples. 
    Id.
     at col. 1 ll. 17–
    19. In preparation for examination, tissue sections are
    thinly sliced before being placed on a microscope slide,
    4         DAKO DENMARK A/S   v. LEICA BIOSYSTEMS MELBOURNE
    and are “nearly transparent” if untreated. 
    Id.
     at col. 1 ll.
    19–21. In order to visualize various features of the sam-
    ples, different techniques are applied which have the
    effect of coloring, or staining, the sample. 
    Id.
     at col. 1 ll.
    20–29. Because different staining techniques “require[]
    the addition and removal of reagents in a defined se-
    quence for specific time periods, at defined tempera-
    tures[,] . . . a need arises for a slide stainer that can
    perform a diversity of stains simultaneously under com-
    puter control, as specified by the technologist.” 
    Id.
     at col.
    1 ll. 29–35.
    In addition to the need for a slide stainer that can ap-
    ply different processes to a single slide, the specification
    identifies a further need for a slide stainer that is able to
    simultaneously process multiple slides in different ways.
    See 
    id.
     at col. 2 ll. 7–16. As different staining techniques
    potentially require that slides be heated at different
    temperatures, and for different times, the ʼ392 patent
    describes slide staining systems and methods that “al-
    low[] for the heating of each slide to its own specified
    temperature.” 
    Id.
     at col 2 ll. 13–18.
    In order to facilitate this individualized control, the
    patent describes a system containing multiple “slide
    frames” in which each slide frame contains a separate
    heating element. 
    Id.
     at col. 4 ll. 4–11. Figure 5, shown
    below, illustrates one embodiment of a slide frame and, “is
    a top view of the slide frame base with five microscope
    slides in their appropriate positions, showing the area to
    which heat is applied.” 
    Id.
     at col. 3 ll. 17–20.
    DAKO DENMARK A/S   v. LEICA BIOSYSTEMS MELBOURNE        5
    
    Id.
     at fig.5.
    Claim 7 of the ’392 patent, which the Board found ob-
    vious, reads:
    7. A microscope slide stainer, comprising:
    a staining protocol program comprising instruc-
    tions for applying reagents and heat to a plu-
    rality of microscope slides bearing biological
    samples;
    a plurality of slide supports, each support being
    comprised of a heating element that underlies
    only one microscope slide and having a surface
    on which only one microscope slide rests so as
    to transfer heat to the one microscope slide;
    6         DAKO DENMARK A/S   v. LEICA BIOSYSTEMS MELBOURNE
    at least one reagent dispenser that can dispense a
    liquid reagent onto a microscope slide on one of
    the slide supports;
    a movable carriage that causes the reagent dis-
    penser to be aligned over a desired microscope
    slide on one of the slide supports, as specified
    in the slide staining program, so that reagent
    dispensed out of the reagent dispenser drops
    onto an underlying microscope slide on one of
    the slide supports; and
    a control system that issues commands to cause
    relative motion between the reagent dispenser
    and the microscope slide on one of the slide
    supports so that the reagent dispenser is
    aligned over the microscope slide on one of the
    slide supports, as specified in the staining pro-
    tocol program, and that issues commands to
    cause the heating elements to heat at the times
    specified in the staining protocol program, the
    control system controlling heating of one heat-
    ing element to a different temperature as an-
    other.
    ’392 patent col. 13 l. 14–col. 14 l. 3 (emphasis added).
    In its analysis, the Board first determined that
    Tseung, a prior art reference, disclosed every claim limi-
    tation except the requirement that each heating element
    underlies only one microscope slide. To supply this limi-
    tation, the Board looked to Muller, a second prior art
    reference, which disclosed individual heating elements for
    each slide. The Board also determined that there was a
    motivation to combine Tseung with Muller because Mul-
    ler’s teachings were “directly pertinent to Tseung.” No.
    15-1997 J.A. 15. The Board explained that both refer-
    ences used heating in their automated staining devices
    and that this provided a reason to combine the references.
    DAKO DENMARK A/S   v. LEICA BIOSYSTEMS MELBOURNE         7
    In finding a motivation to combine, the Board ad-
    dressed, and rejected, four arguments Dako made that
    were supported only by testimony from Dr. Floyd, its
    expert, and Dr. Bogen, one of the named inventors of the
    ’392 patent.
    First, Dako argued that Muller was used for in situ
    hybridization (“ISH”), whereas Tseung was designed for
    immunohistochemical (“IHC”) staining, which is a differ-
    ent technique. The Board rejected this argument based
    on the express disclosures of both Tseung and Muller.
    The Board explained that Tseung’s disclosure was not
    limited to IHC staining and contemplates other staining
    techniques. The Board also noted that, even if Tseung
    were limited to IHC staining, Dako’s argument would not
    be persuasive because Muller also expressly discusses
    IHC staining, in addition to ISH.
    Second, Dako argued that a skilled artisan would not
    be motivated to combine Tseung and Muller because
    modifying Tseung, which describes four heating blocks
    with ten slides, to have forty individual heating blocks
    would increase the complexity and reduce the overall
    reliability of the system. In further support of this argu-
    ment, Dako asserted that for two years after the priority
    date of the patent, there were no systems on the market
    that provided individualized heating controls. According
    to Dako, this “support[ed] the contention that the in-
    creased cost and complexity associated with individual
    heating was a non-trivial barrier.” 
    Id. at 2920
    .
    The Board also found this argument unconvincing. It
    explained that the disclosures in both Muller and Tseung
    showed that having multiple heaters was within the
    knowledge of a person of ordinary skill. The Board also
    noted that Tseung was not limited to the preferred em-
    bodiment and could be modified to support only one slide
    on each heating block, which would result in a system
    identical to Tseung, only reduced in size.
    8        DAKO DENMARK A/S   v. LEICA BIOSYSTEMS MELBOURNE
    Third, Dako argued that the staining part of IHC is
    performed at room temperature and, consequently, a
    person of ordinary skill would not recognize the benefit of
    adding heating elements to Tseung. The Board found
    that this argument was directly rebutted by Tseung’s
    statement that “some staining techniques can be en-
    hanced by providing heat so that either incubation or
    drying times are shortened, thereby increasing the speed
    of the overall operation.” 
    Id. at 18
     (quoting Tseung col.
    12, ll. 6–9). The Board then stated that this “not only
    provide[d] a reason[] to have utilized heating in [Tseung],
    but also to have ‘adapted’ Muller’s approach of individual-
    ized heaters for each slide.” 
    Id.
    Finally, Dako argued that, at the time of the inven-
    tion, one of ordinary skill would not have attempted to
    create an automated staining system because experts in
    the field did not believe that special staining processes
    could be automated at all. The Board rejected this argu-
    ment because it found that neither Tseung nor Muller
    was restricted to special staining protocols.
    The Board thus concluded that a person of ordinary
    skill would have been motivated to combine Tseung with
    Muller to arrive at the claimed invention.
    The Board next turned to Dako’s evidence of second-
    ary considerations. For secondary considerations, Dako
    argued that the invention had been copied by Ventana, a
    competitor. 1 In support, Dako relied on Dr. Bogen’s
    declaration, which stated that Ventana obtained a confi-
    dential business plan from CytoLogix, the original owner
    of the ’392 patent. According to Dako, this business plan
    described the invention of the ’392 patent. Dr. Bogen’s
    declaration further stated that Ventana subsequently
    1   This was the same argument that Dako previous-
    ly brought before the examiner.
    DAKO DENMARK A/S   v. LEICA BIOSYSTEMS MELBOURNE        9
    used the confidential business plan to create its own
    device. Dr. Bogen also attached a transcript of a speech
    by Ventana’s chairman, Mr. Schuler, who boasted that
    Ventana launched a competitive product six months after
    seeing the CytoLogix business plan. As additional evi-
    dence of copying, Dako pointed to a license agreement in
    which Ventana licensed two related patents from Dako,
    and a patent application Ventana filed that included
    individual heating of slide samples.
    The Board found Dako’s secondary consideration evi-
    dence unpersuasive. According to the Board, Dako did
    not provide evidence beyond the declaration that Ventana
    created a device with individual heating elements for each
    slide support. The Board also stated that neither Mr.
    Schuler’s statement nor Ventana’s patent application
    established the existence of such a device. The Board
    therefore found that, because it could not adequately
    confirm that Ventana had created a device with individu-
    al heating elements, no nexus had been established. The
    Board also noted that, even had a nexus been established,
    the evidence of copying would not be dispositive in this
    case in light of the other evidence of obviousness.
    Consequently, after reviewing all the evidence before
    it, the Board determined that a preponderance of the
    evidence supported the conclusion that claim 7 of the ’692
    patent would be obvious to a person of ordinary skill in
    the art.
    III
    Whether a claimed invention is obvious is a question
    of law based on underlying facts. Graham v. John Deere
    Co., 
    383 U.S. 1
    , 17–18 (1966). We review the Board’s
    ultimate conclusion of obviousness de novo and any
    underlying factual determinations for substantial evi-
    dence. In re Gartside, 
    203 F.3d 1305
    , 1316 (Fed. Cir.
    2000).
    10        DAKO DENMARK A/S   v. LEICA BIOSYSTEMS MELBOURNE
    Dako does not contest the Board’s finding that, to-
    gether, Tseung and Muller disclose every element of the
    patented claim. Dako makes three arguments challeng-
    ing the Board’s conclusion that claim 7 of the ’392 patent
    is obvious: (1) the Board did not give proper consideration
    to the evidence of secondary considerations; (2) the Board
    inappropriately treated the ability to combine prior art
    references as a motivation to combine them; and (3) the
    Board did not give proper weight to Dako’s copying and
    long-felt need arguments. We address each of Dako’s
    arguments in turn.
    A
    First, Dako argues that the Board failed to consider
    evidence of secondary considerations before it made its
    ultimate conclusion of obviousness. Dako bases this
    argument on the Board’s statement after finding a moti-
    vation to combine that “it would have been obvious to one
    of ordinary skill in the art to implement individual slide
    heating in Tseung for those staining procedures which are
    accomplished in an open system and for which heating to
    different temperatures is desired.” See No. 15-1997 J.A.
    16. According to Dako, because this statement appears
    before the Board’s consideration of any evidence of sec-
    ondary considerations, the Board made its ultimate
    conclusion of obviousness before considering all the evi-
    dence.
    Reading the Board’s opinion in its entirety, it is clear
    that the Board properly considered all the evidence before
    coming to its ultimate legal conclusion. Indeed, in its
    opinion, the Board expressly evaluated Dako’s evidence of
    secondary considerations and appropriately considered it
    before ultimately determining that the claim was obvious.
    Therefore, we reject Dako’s arguments in this regard.
    DAKO DENMARK A/S   v. LEICA BIOSYSTEMS MELBOURNE          11
    B
    Dako next argues that the Board improperly deter-
    mined that the ability to combine prior art references
    established a motivation to combine. In support, Dako
    points to portions of the Board’s decision in which it states
    that “providing a plurality of slide heaters would have
    been within the skill of the ordinary artisan” and relies on
    Tseung’s language that “[n]umerous techniques exist for
    heating microscope slides and can be adapted to the
    present apparatus.” No. 15-1997 J.A. 18–19. According
    to Dako, the Board never articulated a specific reason or
    motivation to combine the references and ignored the
    unrebutted testimony of its expert, Dr. Floyd, who testi-
    fied at length that a person of ordinary skill would have
    been discouraged from combining Tseung and Muller.
    The existence of a motivation to combine is a factual
    determination. Star Sci., Inc. v. R.J. Reynolds Tobacco
    Co., 
    655 F.3d 1364
    , 1374–75 (Fed. Cir. 2011). Under a
    substantial evidence standard of review, we must draw all
    reasonable inferences in favor of the Board’s decision that
    are supported by the record and should take care not to
    make credibility determinations or to weigh the evidence.
    Reeves v. Sanderson Plumbing Prods., Inc., 
    530 U.S. 133
    ,
    150 (2000). “[A]lthough the court should review the
    record as a whole, it must disregard all evidence favorable
    to the [appellant] that the [factfinder] is not required to
    believe.” 
    Id. at 151
    .
    Here, in support of its position, Dako exclusively re-
    lies upon the testimony of its expert, Dr. Floyd. In his
    declaration, Dr. Floyd stated that a person of ordinary
    skill would not have been motivated to combine Tseung
    with Muller because a person of ordinary skill would not
    have appreciated a need to include individual heating to
    the system of Tseung. Dr. Floyd further stated that
    modifying Tseung to include individual heating elements
    would increase the complexity of the system and substan-
    12        DAKO DENMARK A/S   v. LEICA BIOSYSTEMS MELBOURNE
    tially increase the cost. Finally, Dr. Floyd stated that a
    person of ordinary skill would not have combined Tseung
    with Muller because Tseung related to IHC staining,
    whereas Muller related to ISH staining.
    The question before us is whether, based on all of the
    evidence before the Board, a reasonable factfinder could
    find that there was a motivation to combine Tseung and
    Muller. The answer to this question is “yes.” A motiva-
    tion to combine can be found in “any need or problem
    known in the field of endeavor at the time of the invention
    and addressed by the patent.” KSR Int’l Co. v. Teleflex
    Inc., 
    550 U.S. 398
    , 420 (2007). “[T]he analysis need not
    seek out precise teachings directed to the specific subject
    matter of the challenged claim, for a court can take ac-
    count of the inferences and creative steps that a person of
    ordinary skill in the art would employ.” 
    Id. at 418
    .
    In its analysis, the Board primarily relied on Tseung’s
    statement that “some staining techniques can be en-
    hanced by providing heat so that either incubation or
    drying times are shortened, thereby increasing the speed
    of the overall operation.” No. 15-1997 J.A. 17 (quoting
    Tseung, col. 12 ll. 6–9). According to the Board, this both
    provided a reason to use heating in Tseung and adapt it to
    use Muller’s individual heaters. Given the disclosures of
    Tseung and Muller, this conclusion is supported by sub-
    stantial evidence. Because Tseung teaches a system that
    is “readily programmable to allow automated staining of
    individual microscope slides with different techniques
    without operator intervention in a single operation,” its
    later discussion as to the benefits of heating slides would
    reasonably motivate a person of ordinary skill to look for a
    way to adapt the system to heat individual slides to
    different temperatures. See Tseung col. 2 ll. 27–31.
    In this case, the Board evaluated Dr. Floyd’s testimo-
    ny and found it lacking against the express disclosures of
    both Tseung and Muller. We will not disturb this deter-
    DAKO DENMARK A/S   v. LEICA BIOSYSTEMS MELBOURNE        13
    mination. Therefore, the Board’s finding that a person of
    ordinary skill would have been motivated to combine
    Tseung and Muller is supported by substantial evidence.
    C
    Finally, Dako asserts that the Board discounted its
    evidence of copying in finding that there was no nexus
    between its proffered evidence and claim 7 of the ’392
    patent. Dako also argues that the Board failed to consid-
    er whether the evidence established the existence of a
    long-felt need.
    According to Dako, unrebutted evidence shows that
    Ventana had access to CytoLogix’s business plan, that
    Ventana’s product was substantially similar to Dako’s
    product, and that a patent application subsequently filed
    by Ventana disclosed a system that provides for separate
    heating of individual microscope slides. Dako asserts that
    this evidence compels only one conclusion—Ventana
    copied the invention embodied by claim 7 of the ’392
    patent.
    In its opinion, the Board credited Dako’s evidence that
    Ventana had access to CytoLogix’s business plan and that
    the business plan disclosed a system with individual
    heaters for each slide support. The Board found that this
    was insufficient to establish a nexus because, aside from a
    statement by Dr. Bogan which the Board deemed conclu-
    sory, there was no record evidence showing that Ventana
    produced, or attempted to produce, a device with individ-
    ual heating elements after seeing the business plan. The
    Board also determined that neither Mr. Schuler’s state-
    ments nor Ventana’s subsequent patent application
    established that Ventana ever attempted to copy the
    patented feature.
    The Board’s analysis here is supported by substantial
    evidence. The Board considered Dr. Bogan’s testimony
    and concluded that it was insufficient to establish a
    14        DAKO DENMARK A/S   v. LEICA BIOSYSTEMS MELBOURNE
    nexus. The only other pieces of evidence Dako submitted
    to establish copying were Mr. Schuler’s speech and Ven-
    tana’s patent. The speech does not describe the features
    of the product Ventana ultimately released, and the mere
    existence of Ventana’s patent does not necessarily imply
    that the patent is based on the specific product referred to
    in Mr. Schuler’s statement. Because a reasonable fact-
    finder could interpret the evidence Dako presented as
    failing to provide a nexus, the Board’s conclusion is sup-
    ported by substantial evidence.
    Dako also argues that the evidence establishes the ex-
    istence of a long-felt need. In support of this argument,
    Dako points to aspects of Dr. Bogdan’s declaration and an
    article attached as an exhibit thereto. But Dako never
    made this argument before the Board or the examiner. In
    its submissions to the Board, Dako only cited this evi-
    dence to “support[] the contention that the increased cost
    and complexity associated with individual heating was a
    non-trivial barrier.” No. 15-1997 J.A. 2920. Before the
    examiner, Dako only argued that copying was a secondary
    consideration that supported non-obviousness, not that
    there was a long-felt need. 
    Id.
     at 3286–87.
    Though Dako did present the evidence it now relies on
    to the Board, it did not do so in the context of long-felt
    need. It is hardly surprising, and not error, therefore,
    that the Board considered the evidence in the context in
    which it was presented, and not in the context of long-felt
    need.
    Thus, Tseung and Muller together disclose all the lim-
    itations of claim 7 of the ’392 patent, and a person of
    ordinary skill would have been motivated to combine
    them. There is also a lack of evidence of secondary con-
    siderations. Therefore, claim 7 of the ’392 patent is
    invalid as obvious under 
    35 U.S.C. § 103
    .
    DAKO DENMARK A/S   v. LEICA BIOSYSTEMS MELBOURNE         15
    IV
    We now turn to the ’672 patent. The ’672 patent is a
    continuation of the ’392 patent and shares a common
    specification with the ’392 patent. ’672 patent at [60].
    Claim 2 of the ’672 patent, which the Board found an-
    ticipated by Tseung is at issue in this appeal. Claim 2
    depends from claim 1. The claims read:
    1. A method of processing samples mounted on
    microscope slides comprising:
    providing a plurality of slide supports on a plat-
    form, each support being comprised of a heating
    element that underlies at least one microscope
    slide and having a surface on which the at least
    one microscope slide and having a surface on
    which the at least one microscope slide rests so
    as to transfer heat to the at least one micro-
    scope slide, said heating elements being capa-
    ble of heating said microscope slides, under
    independent electronic control to heat some
    slides to a different temperature than other
    slides;
    placing two or more microscope slides on the plat-
    form;
    providing relative motion between the platform
    and a liquid dispenser;
    dispensing liquid from the liquid dispenser onto
    the slides; and
    on the platform, heating one slide to a different
    temperature than a second slide.
    2. A method of processing samples mounted on
    microscope slides as claimed in claim 1, where-
    in each slide support accommodates only one
    microscope slide.
    16        DAKO DENMARK A/S   v. LEICA BIOSYSTEMS MELBOURNE
    
    Id.
     at col. 12 ll. 24–44 (emphases added).
    In its decision, the Board first construed the term
    “slide support,” in claim 2, which appears in the claim,
    but not the specification. Before the Board, Dako argued
    that the term should be construed as “a heating element
    that underlies the only one microscope slide and has a
    surface on which the only one microscope slide rests so as
    to transfer heat to the at least one microscope slide.” No.
    16-1000 J.A. 22. In support of this construction, Dako
    argued that, because a slide support is “comprised of” a
    heating element, it necessarily follows that a one-to-one
    relationship must exist between a slide support and a
    heating element. The Board disagreed. It determined
    that the heating element described in claim 1 supports “at
    least one” microscope slide, which indicates that it may
    support multiple slides. The Board further determined
    that there was no limitation in claim 2 which narrowed
    this capability. The Board found additional support for
    its interpretation from the ’392 patent, which expressly
    disclosed a system in which a heating element underlies
    only one slide.
    Based on this construction, the Board determined
    that a preponderance of the evidence supported the con-
    clusion that Tseung met all the limitations of claim 2 and
    thus anticipated it.
    V
    Claim construction is an issue of law based on under-
    lying factual considerations. Teva Pharm. USA, Inc. v.
    Sandoz, Inc., 
    135 S. Ct. 831
    , 838 (2015). We review the
    Board’s ultimate construction de novo, and any underly-
    ing factual determinations for substantial evidence.
    Microsoft Corp. v. Proxyconn, Inc., 
    789 F.3d 1292
    , 1297
    (Fed. Cir. 2015). In inter partes reexamination proceed-
    ings, claims are given their “broadest reasonable interpre-
    tation” consistent with the specification. In re Rambus,
    Inc., 
    753 F.3d 1253
    , 1255 (Fed. Cir. 2014).
    DAKO DENMARK A/S   v. LEICA BIOSYSTEMS MELBOURNE         17
    Dako makes one argument challenging the Board’s
    conclusion that claim 2 of the ’672 patent is anticipated:
    that the Board incorrectly construed “slide support” as not
    requiring individual heating elements for each slide
    support and that, under the correct construction, Tseung
    does not anticipate. Dako does not argue that under the
    Board’s construction Tseung would not be an anticipatory
    reference.
    According to Dako, claim 1 of the ’672 patent, from
    which claim 2 depends, creates a “one-to-one correspond-
    ence between slide supports and heating elements.” No.
    16-1000 Appellant’s Br. 27. Dako asserts that this is “the
    only interpretation that permits each single slide sup-
    ported by each slide support of [c]laim 2 to heat each slide
    to a different temperature.” 
    Id.
    Dako’s argument is premised on the conclusion that
    claim 2 requires individual slide supports to be capable of
    individual temperature control. But, as the Board noted,
    such a requirement is not apparent on the face of either
    claim 1 or claim 2.
    In claim 1, a slide support may support a plurality of
    slides, and the limitation that “each support being com-
    prised of a heating element that underlies at least one
    microscope slide” does not preclude one heating element
    from underlying multiple slide supports. Indeed, figure 5
    of the specification discloses exactly such an embodiment.
    See ’672 patent fig.5; 
    id.
     at col. 3 ll. 16–18 (stating that
    figure 5 “is a top view of the slide frame base with five
    microscope slides in their appropriate positions, showing
    the area to which heat is applied”).
    Claim 2 only limits the slide support, not the heating
    element. Consequently, it does nothing to change the
    conclusion that, as in claim 1, a single heating element
    may underlie multiple slide supports.
    18        DAKO DENMARK A/S   v. LEICA BIOSYSTEMS MELBOURNE
    In further support of its construction, Dako points to
    language in claim 1 that requires the ability to “heat[] one
    slide to a different temperature than a second slide.” 
    Id.
    at col. 12 ll. 40–41. This argument does not render the
    Board’s interpretation unreasonable in light of the specifi-
    cation. The quoted limitation refers to the capabilities of
    the platform and is met when two heating blocks are
    present in the system, regardless of how many slide
    supports are present.
    We therefore agree with the Board’s construction.
    Though the construction is broader than Dako’s proposed
    construction, it is not unreasonable and is consistent with
    both the claims and the specification. See In re NTP, Inc.,
    
    654 F.3d 1268
    , 1274 (Fed. Cir. 2011).
    Because we agree with the Board’s construction of
    “slide support,” and, further, because Dako does not argue
    that Tseung fails to anticipate under this construction,
    claim 2 of the ’672 patent is invalid under 
    35 U.S.C. § 102
    .
    CONCLUSION
    For the foregoing reasons, we affirm the Board’s rejec-
    tions of claim 7 of the ’392 patent and claim 2 of the ’672
    patent.
    AFFIRMED