Yufa v. Tsi, Incorporated , 600 F. App'x 747 ( 2015 )


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  •        NOTE: This disposition is nonprecedential.
    United States Court of Appeals
    for the Federal Circuit
    ______________________
    ALEKSANDR L. YUFA,
    Plaintiff-Appellant,
    v.
    TSI, INCORPORATED,
    Defendant-Appellee.
    ______________________
    2014-1539
    ______________________
    Appeal from the United States District Court for the
    Northern District of California in No. 4:09-cv-01315-
    KAW, Magistrate Judge Kandis A. Westmore.
    ______________________
    Decided: January 26, 2015
    ______________________
    ALEKSANDR L. YUFA, of Colton, California, pro se.
    BRUCE H. LITTLE, Lindquist & Vennum LLP, of Min-
    neapolis, Minnesota, for defendant-appellee. With him on
    the brief was CHRISTOPHER R. SULLIVAN.
    ______________________
    Before PROST, Chief Judge, BRYSON, and WALLACH, Cir-
    cuit Judges.
    2                                 YUFA   v. TSI, INCORPORATED
    WALLACH, Circuit Judge.
    Plaintiff-Appellant Dr. Aleksandr L. Yufa appeals the
    decision of the United States District Court for the North-
    ern District of California (“district court”) granting sum-
    mary judgment to Defendant-Appellee TSI Incorporated
    (“TSI”) on Dr. Yufa’s claim that TSI infringed 
    U.S. Patent No. 6,346,983
     (“the ’983 patent”). See Aleksandr L. Yufa
    v. TSI Inc., CV 09-01315-KAW (N.D. Cal. May 21, 2014)
    J.A. 2–11 (“Order”). Because the district court properly
    granted TSI’s motion for summary judgment, this court
    affirms.
    I.   BACKGROUND
    A. The ’983 Patent
    The ’983 patent is directed to the methods and devices
    for determining air, gas and liquid quality by measuring
    the quantity and size of airborne particles by utilizing a
    light beam. Established methods of measuring particles
    include measuring the light scattered by single particles
    as they pass through a focused light or laser detecting
    system.
    A light beam is directed at a particular point and in-
    dividual particles are pulled through the beam. When
    particles pass through light, it causes the light to scatter.
    Light detected is output in the form of an analog voltage
    (amplitude) signal corresponding to the intensity of the
    light scatter off the particle. Digital signals are generated
    by comparing the analog voltage to a “reference voltage.”
    A reference voltage is a predetermined voltage which
    serves as a point of comparison to amplified detected
    signals. “The amplified detected signals are compared
    with the predetermined reference voltages [in order to
    determine] particle size.” ’983 patent col. 2 ll. 26–28.
    Instead of a reference voltage, the ’983 patent introduces
    an apparatus that measures particle size by the duration
    YUFA   v. TSI, INCORPORATED                               3
    of digital form pulse. Independent claim 6 is illustrative
    and recites:
    An apparatus for counting and measuring parti-
    cles, providing a processing of an output of a light
    detecting means, said apparatus comprises:
    a current-voltage conversion means, providing
    conversion of said output of said light detecting
    means to voltage value signals, and wherein said
    output is effectively indicative of a size of said
    particles;
    an amplifying means, providing an amplification
    of said voltage value signals;
    an analog-digital form pulse duration conversion
    means, providing conversion of each of said volt-
    age value signals to digital form pulses, and
    wherein each of said digital form pulses has a du-
    ration, which is adequate to the duration of an
    appropriate output of said light detecting means;
    a strobe pulse generating means, providing gener-
    ating of strobe pulses;
    a conjunction means, forming strobe pulse packag-
    es by conjunction of each said digital form pulse
    and said strobe pulses;
    a selecting, sorting and counting means, providing
    the selection and sorting of said strobe pulse pack-
    ages by an identical quantity of said strobe pulses
    within each of said strobe pulse packages.
    ’983 patent col. 14 ll. 16–41 (emphases added to disputed
    claim language).
    B. Reexamination
    On March 25, 2009, Dr. Yufa filed a complaint alleg-
    ing that TSI’s predecessor-in-interest, Adams Instru-
    ments (“Adams”) infringed the ’983 patent via sale of
    4                                 YUFA   v. TSI, INCORPORATED
    wireless communications products believed to be using
    technology covered by the ’983 patent.. The case was
    stayed pending an Ex Parte Reexamination of the ’983
    patent by the United States Patent and Trademark Office
    (“PTO”).
    As originally issued, the patent included a total of
    eight claims. However, the PTO issued a certificate of
    reexamination (“Reexamination”) in which only claims 6–
    8 of the ’983 patent survived. Although claims 6–8 were
    determined to be patentable, the PTO modified claim 6 to
    include additional limitations. The modification added
    the following limitation: “without using a reference volt-
    age to convert each said voltage value signals.” Ex Parte
    Reexamination Certificate to 
    U.S. Patent No. 6
    .346,983
    (Issued Aug. 14, 2012) (“Reexamination Certificate”) col. 2
    ll. 1–3. In light of this modification, the fourth paragraph
    of claim 6 now reads:
    an analog-digital form pulse duration conversion
    means, providing conversion of each of said volt-
    age value signals to a digital form pulse [without
    using a reference voltage to convert each of said
    voltage value signals], wherein each said digital
    form pulse has a duration, which is adequate to a
    baseline duration of the appropriate output of said
    light detecting means;
    Reexamination Certificate col. 2 ll. 1–7 (emphasis added
    to disputed claim language and to reflect modification)
    II.   THE ACCUSED PRODUCTS
    TSI manufactures and sells products used to deter-
    mine air quality through evaluation of the size of particles
    in the air. Dr. Yufa claimed TSI’s Non-Optical Devices,
    Pulse Height Detection Devices and Pulse Integration
    Devices (the “Accused Products”) all infringed the ’983
    patent. Appellant’s Br. 2, 7–8.
    YUFA    v. TSI, INCORPORATED                                 5
    The Accused Products can be grouped into three cate-
    gories: (1) Non-Optical Devices count and measure parti-
    cles by “utilizing diffusion charging of sample particles,
    followed by detection of the charged aerosol using an
    electrometer.” 1 J.A. 279–80; (2) “Pulse Height Detection
    Devices detect the intensity or amount of light scattered
    off a particle to measure amplitude or ‘height’ of the
    voltage pulse, and, thereby, to infer particle size,” 2 id; (3)
    Pulse Integration Devices “measure particle size by
    integrating the output signal from the photodetector over
    a period of time to calculate a pulse ‘area’ instead of pulse
    amplitude.” 3 
    Id. at 280
    .
    On September 18, 2012, Dr. Yusef filed a First
    Amended Complaint asserting TSI’s product infringed the
    amended claims. On November 22, 2013, the district
    court held a claim construction hearing. The claim con-
    struction order was issued on February 24, 2014 and TSI
    filed a motion for summary judgment on December 12,
    2013.
    1   Non-Optical Devices include the AEROTRAK Na-
    noparticle Aerosol Monitor 9000.
    2   Pulse    Height    Detection    Devices  include
    AEROTRAK Handheld Particle Counters 9303, 9306-01,
    9306-02, 9306-V and 8220; AEROTRAK Portable Particle
    Counters 9110, 9310-01, 9350-01, 9510-01, 9510-01, 8240
    and 8260; AEROTRAK Remote Particle Counters 7110,
    7201, 7301, 7301-P, 7310, 7501 and 7510; Optical Particle
    Sizer 3330; DustTrak).
    3   Pulse Integration Devices include: AEROTRAK
    Handheld Particle Counters 9306-03, 9306-04 and 9306-
    V2; AEROTRAK Portable Particle Counters 9310-2, 9350-
    02, 9500-1, 9510-2, 9550-02 and 9350-3.
    6                                  YUFA   v. TSI, INCORPORATED
    III.   DISCUSSION
    A. Standard of Review
    This court reviews a district court’s summary judg-
    ment decision under the law of the district court’s regional
    circuit. Lexion Med., LLC v. Northgate Techs., Inc., 
    641 F.3d 1352
    , 1358 (Fed. Cir. 2011). Applying the law of the
    Ninth Circuit, this court reviews the grant of summary
    judgment de novo. Cousins v. Lockyer, 
    568 F.3d 1063
    ,
    1067 (9th Cir. 2009). Summary judgment is appropriate
    when “the pleadings . . . show that there is no genuine
    issue as to any material fact and that the moving party is
    entitled to a judgment as a matter of law.” Anderson v.
    Liberty Lobby, Inc., 
    477 U.S. 242
    , 247 (1986); HCA Health
    Servs. of Ga., Inc. v. Employers Health Ins. Co., 
    240 F.3d 982
    , 991 (11th Cir. 2001).
    Once the moving party demonstrates the absence of a
    genuine issue of material fact, “the non-moving party
    must come forward with ‘specific facts showing that there
    is a genuine issue for trial.’” Matsushita Elec. Indus. Co. v.
    Zenith Radio Corp., 
    475 U.S. 574
    , 587 (1986) (quoting
    Fed. R. Civ. P. 56(e)) (emphasis included).
    “The first step of the infringement analysis is claim
    construction, a question of law reviewed de novo.” Nazo-
    mi Commc’ns, Inc. v. Nokia Corp., 
    739 F.3d 1339
    , 1343
    (Fed. Cir. 2014) (citing Cybor Corp. v. FAS Techs., Inc.,
    
    138 F.3d 1448
    , 1456 (Fed. Cir. 1998) (en banc)). Claim
    terms are generally given their ordinary and customary
    meaning, which “is the meaning that the term would have
    to a person of ordinary skill in the art in question at the
    time of the invention.” Phillips v. AWH Corp., 
    415 F.3d 1303
    , 1313 (Fed. Cir. 2005) (en banc). A skilled artisan
    reads the term “in the context of the particular claim in
    which the disputed claim appears,” as well as “in the
    context of the entire patent, including the specification.”
    
    Id. at 1313
    .
    YUFA   v. TSI, INCORPORATED                                7
    B. Dr. Yufa Did Not Present Evidence Showing the
    Accused Products Infringe the ’983 Patent
    To establish infringement, Dr. Yufa “must prove that
    the [Accused Products] embod[y] every limitation in the
    claim, either literally or by a substantial equivalent.”
    Conroy v. Reebok Int’l, Ltd., 
    14 F.3d 1570
    , 1573 (Fed. Cir.
    1994) (citation omitted). In granting TSI’s summary
    judgment request, the district court found none of TSI’s
    products met every limitation in claim 6 of the ’983 patent
    and that Dr. Yufa failed to present any evidence that
    would create a genuine issue of material fact to defeat
    TSI’s motion for summary judgment.
    i.    Dr. Yufa Did Not Present Evidence Refuting
    TSI’s Claim that the Accused Products Use Ref-
    erence Voltage to Convert Analog Signals to a
    Digital Form Pulse
    As to TSI’s optical devices (Pulse Height Detection
    Devices and Pulse Integration Devices), TSI concedes that
    these devices “use a light detecting means to measure and
    count particle size.” Order at 5 (quoting Def.’s Mot. at 8–
    9). In support of this assertion, TSI provided the declara-
    tion of Ricky Holm, an “Electrical Engineering Manager
    at TSI with over 20 years of professional experience in
    research, development and manufacturing of particle
    measuring equipment.” Order at 5. Holm testified that
    “[c]laim 6 of the ’983 Patent requires a system that con-
    verts a light detector’s amplified output into a digital
    signal without comparing the light detector’s amplified
    output to a predetermined reference voltage.” However,
    all of the TSI’s optical devices “use a reference voltage in
    connection with detecting particles.” J.A. 282. Therefore,
    TSI asserts its optical device products do not embody
    every limitation in claim 6. With respect to its Non-
    Optical Device, Mr. Holm testified that TSI’s only accused
    device (AEROTRAK 9000) “does not use a light detecting
    8                                 YUFA   v. TSI, INCORPORATED
    means to count and measure particles.” Order at 5 (quot-
    ing Holm Decl. ¶ 14).
    The district court credited Mr. Holm’s declaration and
    held that in response, Dr. Yufa failed to “present any
    additional evidence beyond his conclusory contention that
    [the Accused Products] infringe” the ’983 patent. Order at
    9. Specifically, the court found Dr. Yufa could not show
    the Accused Products employed Pulse Width Modulation
    (“PWM”) to detect particles as opposed to a reference
    voltage as required by the ’983 patent. The district court
    also found Dr. Yufa’s “opposition consists almost entirely
    of conclusory allegations regarding TSI’s credibility,
    which does not create a genuine issue of material fact.”
    Order at 9.
    On appeal to this court, Dr. Yufa contends “[t]he Dis-
    trict Court erred in granting summary judgment on the
    grounds of non-infringement to TSI.” Appellant’s Br. 37.
    Specifically, Dr. Yufa argues he “produced and identified
    at least the TSI’s [sic] interrogatory answer which states
    that TSI uses [PWM]” rather than a reference voltage. Id.
    at 2. Conversely, TSI contends Dr. Yufa “willfully mis-
    reads this statement as an admission.” Appellee’s Br. 16.
    Moreover, TSI claims it “amended [its] response to deny
    the use of [PWM] in any of its products.” Id.
    Dr. Yufa’s argument is related to TSI’s response to the
    third question in Dr. Yufa’s first set of interrogatories. In
    response to Dr. Yufa’s question concerning whether the
    Accused Products use PWM, TSI stated:
    TSI objects to the term Pulse Width Modulation
    as overly broad, vague and ambiguous. Notwith-
    standing such objections and without waiving any
    objections, Defendant TSI incorporates by refer-
    ence its Answer and denies infringement of the
    ’983 Patent. To the extent that Defendant TSI us-
    es [PWM] in any of its products, it does so in a
    manner that does not infringe the ’983 patent.
    YUFA   v. TSI, INCORPORATED                                 9
    J.A. 214–15 (emphasis added).
    Dr. Yufa argues the above response is an admission
    by TSI that its products use PWM. This court finds the
    response by TSI does not constitute an admission. Rather,
    it is a hypothetical reply that merely serves to address
    TSI’s stance on whether its products infringe the ’983
    patent. Thus, Dr. Yufa cannot employ TSI’s response to
    interrogatory No. 3 as illustrative of an admission.
    Dr. Yufa next argues the district court erred in grant-
    ing summary judgment to TSI on the ground that the
    Accused Products use a reference voltage to convert the
    analog signal to a digital form pulse. Dr. Yufa contends
    the court erred in granting the judgment because “TSI
    asserts that [its] Optical Devices use a reference voltage
    only for indication of a pulse presence, but not for conver-
    sion.” Appellant’s Br. 56–57. Here, Dr. Yufa claims that
    TSI, via Mr. Holm’s declaration, establishes inconsisten-
    cies regarding whether its optical devices use a PWM. Id.
    at 57. Specifically, Dr. Yufa cites the district court’s order
    stating: “[TSI] has provided evidence that each of the
    particle counters used in connection with the [Accused
    Products] uses a reference voltage to convert analog
    particle signals into digital form pulses, and, therefore, do
    not embody a limitation of the ’983 Patent.” Order at 8.
    Dr. Yufa compares the aforementioned statement to one
    where the district court states:
    TSI asserts that all of its remaining accused Pulse
    Integration Devices use pulse area to size parti-
    cles instead of pulse amplitude. These products
    use a “reference threshold” to prevent false indica-
    tions of a particle, and, therefore, only “indicate
    the presence of a pulse if the voltage signal ex-
    ceeds the reference threshold value.”
    Order at 7 (quoting Holm Decl. at 19) (citations omitted)
    10                                YUFA   v. TSI, INCORPORATED
    Dr. Yufa contends the two above statements are con-
    tradictory and therefore create a “genuine issue of mate-
    rial fact in regards to whether the accused products
    operate without the use of a reference voltage.” Appel-
    lant’s Br. 58.
    To the extent Dr. Yufa contends the second quotation
    supports the fact that a reference voltage is used only to
    indicate the presence of a pulse as opposed to being used
    to convert analog particle signals into digital form pulses,
    this court does not agree. The fact the second assertion by
    Mr. Holm, unlike the first, does not expressly state the
    particle counters in the Accused Products use a reference
    voltage to convert analog particle signals into digital form
    pulses is not indicative of the fact that it does not. TSI,
    via the declaration of Mr. Holm, has consistently claimed
    its optical devices use a reference voltage in converting
    analog particle signals into digital form pulses and Dr.
    Yufa has not presented any evidence to the contrary.
    In order to survive a motion for summary judgment
    after the moving party has presented evidence that the
    Accused Products do not meet the claim limitations of the
    ’983 patent, the non-moving party must go beyond the
    pleadings and identify specific facts “showing that there is
    a genuine issue for trial.” Matsushita Electric Indus. Co.
    v. Zenith Radio Corp., 
    475 U.S. 574
    , 586–87 (1986) (quot-
    ing Fed. R. Civ. P. 56(e))
    Here, Dr. Yufa urges this court to find the optical de-
    vices do not use such a method merely because TSI failed
    to reference such use in a particular instance. Because
    this court does not find the two assertions by Mr. Holm
    referenced in the district court’s order to be contradictory,
    they do not create a genuine issue of material fact to
    defeat TSI’s motion for summary judgment.
    ii.   The Schematic Diagram Timer Presented by Dr.
    Yufa Cannot Be Addressed Because He Failed to
    Present it to the District Court
    YUFA   v. TSI, INCORPORATED                               11
    Dr. Yufa again argues that the Accused Products do
    not use a reference voltage by submitting TSI’s Schematic
    Diagram-Timer, Model 3800 ATOFMS (“Schematic Dia-
    gram”). Dr. Yufa argues that TSI’s PWM, as illustrated
    in the Schematic Diagram “provide the conversion of the
    voltage value (analog) signals to a digital form pulses
    without the use of reference voltage.” Appellant’s Br. 57.
    TSI counters Dr. Yufa did not present this argument to
    the district court, nor did he present the schematic dia-
    gram as part of his evidence in his opposition to TSI’s
    motion for summary judgment. Appellee’s Br. 14.
    The Schematic Diagram represents a new and entire-
    ly different ground in support of Dr. Yufa’s contention
    that TSI’s products use PWM rather than a reference
    voltage to convert analog particle signals into digital form
    pulses. However, “it is the general rule . . . that a federal
    appellate court does not consider an issue not passed
    upon below.” Singleton v. Wulff, 
    428 U.S. 106
    , 120 (1976).
    “[This court’s] precedent counsels against entertaining
    arguments not presented to the district court.” Golden
    Bridge Tech., Inc. v. Nokia, Inc., 
    527 F.3d. 1318
    , 1322
    (Fed. Cir. 2008). Thus, “this court does not ‘review’ that
    which was not presented to the district court.” Sage
    Prods., Inc. v. Devon Indus., Inc., 
    126 F.3d 1420
    , 1426
    (Fed. Cir. 1997).
    However, in Forshey v. Principi, 
    284 F.3d 1335
     (2002)
    this court articulated a set of circumstances in which
    hearing arguments for the first time is appropriate: (1)
    “[w]hen new legislation is passed while an appeal is
    pending, courts have an obligation to apply the new law if
    Congress intended retroactive application even though
    the issue was not decided or raised below,” 
    id. at 1355
    ; (2)
    “when there is a change in the jurisprudence of the re-
    viewing court or the Supreme Court after consideration of
    the case by the lower court,” 
    id. at 1356
    ; (3) “appellate
    courts may apply the correct law even if the parties did
    not argue it below and the court below did not decide it,
    12                                YUFA   v. TSI, INCORPORATED
    but only if an issue is properly before the court,” id.; (4)
    “where a party appeared pro se before the lower court, a
    court of appeals may appropriately be less stringent in
    requiring that the issue have been raised explicitly be-
    low,” 
    id. at 1357
    .
    Dr. Yufa did not present the Schematic Diagram be-
    fore the district court. However, this court finds that Dr.
    Yufa fits the fourth category in Forshey because he was a
    pro se party appearing before the district court. Although
    Forshey permits this court to be less stringent in requir-
    ing the issue to be expressly presented to the district
    court, this court finds that even under a less stringent
    approach, Dr. Yufa cannot now raise this argument.
    Here, Dr. Yufa concedes TSI presented him the Sche-
    matic Diagram during his inspection of TSI’s products in
    July 2013. However, TSI did not file its motion for sum-
    mary judgment to the district court until December 12
    2013. Moreover, Dr. Yufa filed his opposition on Decem-
    ber 23, 2013. 
    Id.
     Thus, Dr. Yufa had the requisite time
    and opportunity to present this argument to the district
    court. Additionally, Dr. Yufa has not presented any
    extenuating or limiting circumstance that impeded his
    ability to present this diagram to the district court.
    Therefore, by not presenting this argument before the
    district court, Dr. Yufa has waived this argument.
    iii.   Exhibits H and I Do Not Support the Claim that
    TSI’s Accused Products Use PWM
    Finally, Dr. Yufa argues that “Exhibits H and I in
    [his] First Amended Complaint . . . disclose [] TSI’s use of
    the pulse duration (width) in [] TSI’s products for particle
    size determination.” Appellant’s Br. 23. Exhibit H is
    titled “Introduction To Interfaces Used In Facility Moni-
    toring Systems.” 
    Id.
     at 23–24. As stated by the district
    court, “Exhibit H is a document of unknown authorship . .
    . which contains an overview of many different compo-
    nents, including [PWM], and broadly cites to internet
    YUFA   v. TSI, INCORPORATED                               13
    sources.” Order at 8. Exhibit I is a TSI document titled
    “Facility Monitoring Systems Design Recommendations”
    detailing “larger system networking, including the use of
    a local network and IP addresses.” 
    Id.
    As the district court found, these documents are not
    sufficient to create a genuine issue of material fact. Id. at
    8. For example, Exhibit H does not specifically identify
    TSI or its products and it is devoid of any evidence sug-
    gesting the Accused Products employ PWM as opposed to
    a reference voltage.
    With respect to Exhibit I, Dr. Yufa asserts “TSI’s [Fa-
    cility Monitoring Systems] describes the [PWM] and
    provide[s] in those Pulse Width Modulators ‘. . . encod[ing]
    an analogue value as a digital pulse where the on time is
    proportional to the value.’” Appellant’s Br. 24 (quoting
    A122 ¶ 1). Although Exhibit I references remote particle
    counters, it does not refer to PWM or provide any support
    for Dr. Yufa’s contention that the Accused Products detect
    particles without a reference voltage. Rather, it merely
    represents conclusory allegations not grounded in actual
    facts to support Dr. Yufa’s claim.
    Dr. Yufa has not presented sufficient evidence to sup-
    port the claim that the Accused Products use PWM as
    opposed to a reference voltage. Because Exhibits H and I
    do not constitute sufficient evidence to show the Accused
    Products infringe the ’983 patent, this court finds the
    Exhibits are insufficient to create a genuine issue of
    material fact to defeat TSI’s motion for summary judg-
    ment. See Matsushita Electric 
    475 U.S. at
    586–87 n.11
    (1986) (quoting Fed. R. Civ. P. 56(e)) (“When a motion for
    summary judgment is made . . . an adverse party . . . must
    set forth specific facts showing that there is a genuine
    issue for trial. If he does not so respond, summary judg-
    ment . . . shall be entered against him.”).
    14                                YUFA   v. TSI, INCORPORATED
    CONCLUSION
    For the foregoing reasons, this court affirms the dis-
    trict court’s grant of summary judgment to TSI.
    AFFIRMED
    COSTS
    On August 14, 2014, the district court granted in part
    and denied in part “[TSI’s] motion for attorneys’ fees and
    non-taxable costs, and award[ed] TSI attorneys’ fees in
    the amount of $154,702.75 and non-taxable costs in the
    amount of $4,343.05 for work performed between Sep-
    tember 9, 2013, and March 7, 2014.” J.A. 433. The dis-
    trict court subsequently amended its summary judgment
    order to reflect the imposition of attorneys’ fees and costs
    on Dr. Yufa (“The Judgment dated May 22, 2014 (DKT#
    177) is hereby amended.”). J.A. 395 (emphasis added).
    Here, Dr. Yufa’s opening brief did not raise any issue
    regarding the district court’s allocation of attorneys’ fees
    and costs. Dr. Yufa contends “the District Court on
    September 3, 2014 entered a separate Judgment (Doc.
    205) awarding TSI with the attorneys’ fees and costs, but
    not an amended judgment ‘to include’ the attorneys’ fees
    and costs in the non-infringement Judgment.” Reply at
    12. This assertion is incorrect. As explained above, the
    district court “amended” its Order granting TSI’s sum-
    mary judgment motion in order to reflect the imposition of
    costs on Dr. Yufa. Therefore, even if Dr. Yufa timely
    presented this argument before this court, it would have
    been denied. However, this court’s “law is well estab-
    lished that arguments not raised in the opening brief are
    waived”. See SSL Servs., LLC v. Citrix Sys., Inc., 
    769 F.3d 1073
    , 1085 (Fed. Cir. 2014) (quoting SmithKline Beecham
    Corp. v. Apotex Corp., 
    439 F.3d 1312
    , 1319) (Fed. Cir.
    2006). Therefore, because Dr. Yufa did not raise this
    issue in his opening brief, Dr. Yufa has waived this argu-
    ment.