Federal Circuit Archives - Page 31 of 82

Federal Circuit

Specification Sheds Light on Broadest Reasonable Interpretation

by Yoshiko Ito | Feb 17, 2022 | Patents

The US Court of Appeals for the Federal Circuit affirmed a Patent Trial & Appeal Board (Board) obviousness decision, finding that the Board did not err in restricting the broadest reasonable interpretation of a claim term based on its use in the specification. Quanergy Systems, Inc. v. Velodyne Lidar USA, Inc., Case Nos. 20-2070; -2072 (Fed. Cir. Feb. 4, 2022) (Newman, Lourie, O’Malley, JJ.)

Velodyne owns a patent directed to a lidar-based 3D point cloud measuring system that can be used in self-driving vehicles to sense their surroundings. Quanergy petitioned for inter partes review of Velodyne’s patent, challenging the claims as obvious over a Japanese patent application (Mizuno). During the proceedings, the Board construed the broadest reasonable interpretation of the term “lidar (light detection and ranging)” to mean “pulsed time-of-flight (ToF) lidar” based on the written description of Velodyne’s patent and found that Mizuno’s system was not a ToF lidar system. The Board also presumed a nexus between the claimed pulsed ToF lidar system and Velodyne’s evidence of commercial success, relying on mapping the features of the claimed ToF lidar system to Velodyne’s commercial products. Based on its obviousness analysis and presumption of nexus, the Board issued final written decisions, finding that Velodyne’s patent was not unpatentable as obvious. Quanergy appealed.

Quanergy raised two arguments on appeal: The Board erred in its construction of the term “lidar,” and the Board erred in its obviousness analysis. Addressing claim construction, Quanergy argued that the Board did not use the broadest reasonable interpretation of “lidar” since “lidar” merely requires the use of laser light for detection and ranging, and thus “lidar” includes not only “pulsed ToF lidar” but also triangulation and other detection techniques described in Mizuno. The Federal Circuit rejected Quanergy’s argument, finding that the Board did not err in construing the term “lidar” according to its broadest reasonable interpretation because the written description focuses exclusively on “pulsed ToF lidar.”

Turning to obviousness, Quanergy argued that the Board erred in concluding that Velodyne’s claims were nonobvious over Mizuno because the expert testimony that the Board relied upon focused only on one particular embodiment of Mizuno’s device, which was not directed to a pulsed ToF lidar system. The Federal Circuit rejected this argument, finding that the Board did not err because Mizuno described “detect[ing] light reflected at an angle using position or image sensors, neither of which are used in pulsed time-of-flight lidar systems.” Based on this description, the Court found that Mizuno’s device was not a ToF lidar system.

Quanergy also argued that the Board failed to consider the issue of unclaimed features before presuming nexus. Quanergy argued that Velodyne’s evidence of commercial success related to those unclaimed features, such as a 360-degree horizontal field of view, a wide vertical field of view, a dense 3D point cloud and software, all of which were critical and materially impacted the functionality of Velodyne’s products. The Federal Circuit rejected this argument, finding that the Board did not err in finding a presumption of nexus [...]

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Precision Is Paramount: Court Enforces Terms of Email Agreement in Settlement

by Paul Devinsky | Feb 17, 2022 | Patents

The US Court of Appeals for the Federal Circuit reversed a district court order enforcing one party’s version of a settlement agreement, finding that version unsupported by the record. The Court found that the other party’s version accurately reflected the parties’ understanding. PlasmaCam, Inc. v. CNCElectronics, LLC, Case No. 21-1689 (Fed. Cir. Feb. 3, 2022) (Dyk, Reyna, JJ.) (Newman, J., dissenting).

PlasmaCam and CNCElectronics (CNC) both operate in the precision cutting industry. PlasmaCam is the exclusive licensee of a patent related to precision cutting equipment, and it sued CNC for allegedly infringing the patent. In December 2019, the parties notified the district court that they had settled the case but disputes arose in the process of drafting a formal agreement, particularly with respect to the scope of “covered products” under the settlement license and the scope of a “mutual release.” Although the parties eventually advised the district court that they had reached a complete agreement, disputes remained as to the scope of covered products. On PlasmaCam’s motion, the district court ordered CNC to execute PlasmaCam’s version of the agreement, execute a promissory note contemplated by the agreement and pay any unpaid settlement funds. CNC appealed.

The Federal Circuit first evaluated whether it had jurisdiction. The Court found that it had jurisdiction because the district court’s order was an injunction (since it ordered CNC to specifically perform an action, i.e., execute an agreement and promissory note, and not merely to pay money) and a final judgment (because it resolved all substantial issues between the parties).

The Federal Circuit next considered the negotiations between the parties with regards to the settlement agreement. As to the scope of covered products, the Court found that the parties had reached agreement regarding a definition of “covered products” in an email, even though the scope of the mutual release was still being negotiated. However, the Court found that the agreed definition of “covered products” was different from the one PlasmaCam provided to the Court and the one which the Court had subsequently ordered CNC to adopt. The Court also recognized the parties’ subsequent agreement regarding the mutual release, which both parties had confirmed to the district court. Because the district court had clearly erred by adopting a definition of “covered products” different from the one that was agreed by the parties, the Court reversed the district court’s order and remanded for further proceedings consistent with the parties’ actual agreement.

Judge Newman dissented. In her view, no agreement had been reached at all, as the parties had apparently continued to disagree as to the scope of key terms.

Practice Note: In this case, the parties’ statements to the district court that they had reached an agreement played a large role in establishing that an agreement had been formed even though there was no single signed document that reflected the agreement and, in some views, there continued to be disputes about important terms. Litigants should be careful not to represent to a court that an agreement has been [...]

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Seeing Eye to Eye: Preliminary Injunction Affirmed for Patent Filed After Accused Product Was Sold

by Katherine Pappas | Feb 17, 2022 | Patents

The US Court of Appeals for the Federal Circuit affirmed the grant of a preliminary injunction, finding that the district court did not abuse its discretion, clearly err in its underlying factual findings or abuse its discretion in setting the scope of the preliminary injunction. BlephEx, LLC v. Myco Indus., Inc., Case Nos. 2021-1149; -1365 (Fed. Cir. Feb. 3, 2022) (Moore, Schall, O’Malley, JJ.)

Myco sells AB Max, a mechanical device with an attached swab used for treating an eye condition known as blepharitis. Myco began marketing AB Max at a trade show in February 2019. One month later, BlephEx filed an application that later issued as a patent. The patent is directed toward cleaning debris from an eye during treatment of ocular disorders, including blepharitis. According to the patent, prior art treatment for blepharitis included at-home treatment where the patient would use a cotton swab, fingertip or scrubbing pad to scrub the eyelid margin in order to remove debris. Patients would often fail to adequately cleanse the eyelid margin, however. The patent’s solution is an electromechanical device with an attached swab for use by an eyecare professional to clean the patient’s eyelid margins.

The day the patent issued, BlephEx sued Myco and its chairman, John R. Choate, alleging that Myco’s AB Max infringed BlephEx’s newly issued patent. BlephEx moved the district court for a preliminary injunction prohibiting Myco from selling, distributing or offering the AB Max for sale. Myco opposed, arguing that a prior art reference (Nichamin) raised a substantial question of invalidity. The district court disagreed with Myco and granted the injunction. The district court noted that to anticipate, a prior art reference must disclose all elements of a claim arranged as in the claim, and Nichamin did not disclose combining the electromechanical applicator device depicted in one embodiment with a swab disclosed in another. The district court also rejected Myco’s argument that the patent examiner failed to consider Nichamin because he did not substantively discuss it during prosecution. The district court further rejected Myco’s obviousness argument as unsupported by expert evidence, finding Myco failed to overcome “the safety concerns of attaching a swab that is soaked in an abrasive to the Nichamin hand-held device.”

After the district court granted the preliminary injunction, Myco moved for reconsideration and argued that the preliminary injunction was overbroad because the AB Max had noninfringing uses. The district court rejected Myco’s argument, finding it was untimely and presented hypothetical noninfringing uses that were “outweighed by evidence that the only actual use of the AB Max was to treat anterior blepharitis,” which would likely infringe the asserted patent. Myco appealed.

The Federal Circuit affirmed the preliminary injunction grant. With respect to Myco’s anticipation argument, the Court found “Myco offers nothing other than attorney argument as to what the highly skilled artisan would do,” and this was insufficient to raise a substantial question of validity. The Court also noted that Myco had “put all of its eggs in the anticipation basket” and fatally failed [...]

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Federal Circuit Sends iPhone Patent Dispute Back for Third Damages Trial

by Christopher M. Bruno | Feb 17, 2022 | Patents

Considering numerous claim construction, infringement and damages issues related to patents allegedly covering Apple’s iPhones 5 and 6 series technology, a panel of the US Court of Appeals for the Federal Circuit determined that the district court should have held a third trial on damages because the plaintiff’s expert improperly treated the asserted patents as key during his analysis of purportedly comparable license agreements. Apple Inc. v. Wi-Lan Inc., Case No. 20-2011 (Fed. Cir.) (Moore, C.J.; Bryson, Prost, JJ.)

This appeal is the latest iteration of a patent dispute between Apple and Wi-Lan that has lasted eight years and included two trials. The two patents at issue are directed to bandwidth technology that allows a “subscriber unit” rather than the “base station” to allocate bandwidth. At issue in the appeal were numerous challenges from both Apple and Wi-Lan.

The Federal Circuit rejected Apple’s challenge to the district court’s construction of “subscriber unit,” which Apple claimed was limited to “customer premises equipment [CPE]” (e.g., home routers). Although Apple pointed to parts of the specification that suggested that a CPE was a subscriber unit, the Court found that no language met the heavy burden of a clear and unmistakable redefinition of “subscriber unit.” That the sole disclosed embodiment was a CPE did not move the needle, as nothing indicated that the embodiment was limiting.

Next, the Federal Circuit affirmed the jury verdict on liability, finding that substantial evidence supported the jury’s determination that the accused iPhones contained a subscriber unit. The Court found that a jury could conclude from expert testimony that an iPhone allocates bandwidth between two separate connections—voice-over-LTE and data.

Because of the appeal, Apple may now be on the hook for additional infringement liability. The district court had granted Apple summary judgment of noninfringement based on a license agreement between Intel (the maker of Apple’s processor chips in the accused products) and Wi-Lan. According to Apple, this agreement gave Intel a license through patent expiry rather than for the license term. The Federal Circuit rejected that reading of the license between Intel and Wi-Lan, instead finding that the license extended only to pre-termination sales, not in perpetuity as Apple claimed.

Finally, the Federal Circuit found that the district court correctly ordered a new trial on damages after the first trial in the case but erred by not ordering the new trial on damages based on expert testimony admitted at the second damages trial. Regarding the first damages trial, the Court rejected Wi-Lan’s challenge to the district court’s determination that Wi-Lan’s damages expert did not appropriately tie his damages opinion to the benefits of the patented technology. With respect to the second damages trial, the Court found that Wi-Lan’s damages expert gave improper testimony because, without tying his opinion to the facts of the case, he stated that the asserted patents were the “key” drivers of the royalty rates in other license agreements he relied upon—licenses that were to a much larger patent portfolio. Without a sound basis in evidence, [...]

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Bargained-Away Rights to File for IPR May Not Be Recovered

by McDermott Will & Emery | Feb 17, 2022 | Patents

In a precedential opinion, the US Court of Appeals for the Federal Circuit reversed a district court’s denial of a plaintiff’s requested injunction seeking to force a patent challenger to abandon its petitions for inter partes review (IPR). Nippon Shinyaku Co. Ltd. v. Sarepta Therapeutics, Inc., Case No. 2021-2369 (Fed. Cir. Feb. 8, 2022) (Newman, Lourie, Stoll, JJ.)

Nippon Shinyaku and Sarepta Therapeutics executed a mutual confidentiality agreement (MCA) to facilitate discussion of “a potential business relationship relating to therapies for the treatment of Duchenne Muscular Dystrophy.” The MCA established a mutual covenant not to sue for “any legal or equitable cause of action, suit or claim or otherwise initiate any litigation or other form of legal or administrative proceeding against the other Party . . . in any jurisdiction in the United States or Japan of or concerning intellectual property in the field of Duchenne Muscular Dystrophy” during a covenant term. The mutual covenant explicitly “include[d], but [wa]s not limited to, patent infringement litigations, declaratory judgment actions, patent validity challenges before the U.S. Patent and Trademark Office or Japanese Patent Office, and reexamination proceedings before the U.S. Patent and Trademark Office” (emphasis added). The MCA also included a forum selection clause to govern post-term intellectual property disputes between the parties, which stipulated:

that all Potential Actions arising under U.S. law relating to patent infringement or invalidity, and filed within two (2) years of the end of the Covenant Term, shall be filed in the United States District Court for the District of Delaware and that neither Party will contest personal jurisdiction or venue in the District of Delaware and that neither Party will seek to transfer the Potential Actions on the ground of forum non conveniens (emphasis added).

“Potential actions” were defined as:

any patent or other intellectual property disputes between [Nippon Shinyaku] and Sarepta, or their Affiliates, other than the EP Oppositions or JP Actions, filed with a court or administrative agency prior to or after the Effective Date in the United States, Europe, Japan or other countries in connection with the Parties’ development and commercialization of therapies for Duchenne Muscular Dystrophy (emphasis added).

The day the covenant term ended, Sarepta filed seven petitions for IPR at the Patent Trial & Appeal Board (Board). Nippon Shinyaku filed suit in the US District Court for the District of Delaware for breach of contract, declaratory judgment of noninfringement and invalidity and patent infringement. Nippon Shinyaku motioned for a preliminary injunction to enjoin Sarepta from proceeding with the IPR petitions and to force Sarepta to withdraw them. The district court denied Nippon Shinyaku under each of the preliminary injunction factors (likelihood of success on the merits, irreparable harm in the absence of extraordinary preliminary relief, balance of harms in its favor and relief being in the public interest).

The district court explained that any irreparable harm arguments fell within Nippon Shinyaku’s contract interpretation arguments, and that Nippon Shinyaku’s balance of hardships and public interest arguments relied on Sarepta’s ability to file [...]

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Federal Circuit Tosses Shaw: IPR Estoppel Applies to All Grounds That Reasonably Could Have Been Raised

by Paul Devinsky | Feb 17, 2022 | Patents

March 2022 Update: The Federal Circuit has issued an errata to this decision. Read about it here.

Addressing inter partes review (IPR) estoppel after the Supreme Court of the United States’ 2018 decision in SAS Institute, Inc. v. Iancu, the US Court of Appeals for the Federal Circuit overruled its decision in Shaw Industries Group v. Automated Creel Systems, stating that the only plausible reading of 35 U.S.C. § 315(e)(2) estops a party from raising all claims and grounds that reasonably could have been included in the party’s petition for IPR. The Court also rejected the district court’s two-tier damages model as contrary to customary patent damages calculations. California Institute of Technology v. Broadcom Limited, Case Nos. 20-2222; 21-1527 (Fed. Cir. Feb. 4, 2022) (Lourie, Linn, Dyk, JJ.) (Dyk, J., dissenting in part).

Background

California Institute of Technology (Caltech) filed suit against Broadcom and Apple, alleging patent infringement directed to the generation and repetition of information in a wireless data transmission system. Wireless transmission systems generally use data repetition so that the transmitted information may be decoded even when data loss occurs. The patented circuitry discloses a form of irregular data repetition in which portions of the information bits may be repeated a varying number of times.

Apple filed multiple IPR petitions challenging the validity of the claims at issue. The Patent Trial & Appeal Board (Board) concluded in all cases that Apple failed to show that the challenged claims were unpatentable as obvious. At the district court, Apple and Broadcom raised new arguments of obviousness not asserted in the IPR proceedings. The district court granted Caltech’s motion for summary judgment of no invalidity, precluding Apple and Broadcom from raising arguments at trial that they reasonably could have raised in their IPR petitions.

At trial, the district court instructed the jury that “repeat” means “generation of additional bits, where generation can include, for example, duplication or reuse of bits.” Apple and Broadcom argued that the Broadcom chips (which were integrated into Apple devices) did not infringe the asserted claims because they did not repeat information at all. With respect to one of the asserted patents, the district court did not provide a jury instruction relating to its construction that the claim language “information bits appear in a variable number of subsets” requires irregular information bit repetition. The jury found infringement of all asserted claims. Apple and Broadcom filed post-trial motions for judgment as a matter of law (JMOL) and a new trial, both of which the district court denied.

The district court adopted Caltech’s proposed two-tier damages theory, explaining that Broadcom and Apple’s products were different and therefore possessed different values simply because they were “different companies at different levels in the supply chain.” The district court ultimately entered judgment against Broadcom for $288 million and against Apple for $885 million. Broadcom and Apple appealed.

The Appeal

Broadcom and Apple argued that the district court’s construction of “repeat” was inconsistent with the claim language and specification. The Federal Circuit [...]

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This .SUCKS: Trademark Applications for Identical Characters Is a No-Go

by Jodi Benassi | Feb 10, 2022 | Trademarks

The US Court of Appeals for the Federal Circuit affirmed a Trademark Trial and Appeal Board (Board) decision affirming the US Patent and Trademark Office’s (PTO) refusal to register two trademark applications for “.SUCKS.” In Re: Vox Populi Registry Ltd., Case No. 21-1496 (Fed. Cir. Feb. 2, 2022) (Lourie, Dyk, Stoll, JJ.)

Vox is a domain registry operator that maintains the master database of all domain names registered in each top-level domain. Vox filed two trademark applications for identical characters, one as a standard character and the other as a stylized form of .SUCKS, as shown below.

The PTO refused Vox’s applications on the grounds that, when used in connection with the domain services, each failed to function as a trademark. Vox appealed to the Board. The Board concluded that .SUCKS, whether as a standard mark or in the stylized form, would not be perceived as a source identifier. Vox appealed the Board’s decision only with respect to the stylized form of .SUCKS.

On appeal, the Federal Circuit noted that although Vox did not appeal the rejection of the standard character application, it spent much of its opening brief arguing that the standard character functions as a mark. As such, the Court reviewed the Board’s decision with respect to the standard character mark .SUCKS under the substantial evidence standard. Substantial evidence “means only such relevant evidence as a reasonable mind might accept as adequate to support a conclusion.” The Court found that substantial evidence supported the Board’s finding that consumers will view .SUCKS as only a non-source identifying part of a domain name, rather than as a trademark. The Court cited evidence reviewed by the Board, including Vox’s website, online articles and advertisements showing that .SUCKS refers to a product rather than as an identifiable provider or service. Ultimately, the Court found that the Board reasonably weighed the evidence.

The Federal Circuit next addressed the question of whether the stylized design of .SUCKS is registerable. The Court found no error in the Board’s analysis of whether the stylized form creates a separate commercial impression, where “all of the characters in the mark are the same height and width and are merely displayed in a font style that was once mandated by the technological limitations of computer screens.” Because the stylized design was not inherently distinctive, the Court rejected Vox’s application, thus affirming the Board’s decision in full.

IPR Petition Cannot Be Based on Applicant Admitted Prior Art

by Thomas DaMario | Feb 10, 2022 | Patents

Addressing the type of prior art that may form the basis of an inter partes review (IPR) proceeding, the US Court of Appeals for the Federal Circuit vacated an unpatentability finding based on “applicant admitted prior art” in the challenged patent. Qualcomm Inc. v. Apple Inc., Case Nos. 20-1558, -1559 (Fed. Cir. Feb. 1, 2022) (Taranto, Bryson, Chen, JJ.)

Qualcomm owns a patent directed to integrated circuit devices having power detection circuits for systems with multiple supply voltages. The patent seeks to solve problems associated with stray currents causing level shifters in integrated circuits to trigger input/output devices for transmission, which results in erroneous output signals from the circuit. The patent describes various prior art methods for solving the stray current problem.

Apple filed IPR petitions based on two grounds. The first was based on the combination of four prior art references. In its final written decision, the Patent Trial & Appeal Board (Board) found that the combination of these four references did not render the challenged claims invalid. The second ground relied on the applicant admitted prior art disclosed in the specification of the challenged patent in combination with another prior art reference (Majcherczak). During the IPR proceedings, Qualcomm admitted that the combination of the applicant admitted prior art and Majcherczak taught every element of the challenged claims but argued that Apple’s use of the applicant admitted prior art as the basis for an invalidity ground is barred in an IPR proceeding. The Board disagreed with Qualcomm and found the challenged claims unpatentable based on Apple’s second ground. Qualcomm appealed.

Qualcomm argued on appeal that IPR proceedings may only be based on “prior art patents or prior art printed publications” and that 35 U.S.C. § 311(b), which governs IPR proceedings, does not allow for the use of “a patent owner’s admissions” that is contained in non-prior art documents. Apple countered, arguing that any prior art that is contained in “any patent or printed publication, regardless of whether the document itself is prior art, can be used as a basis for [an invalidity] challenge.”

The Federal Circuit agreed with Qualcomm, finding that applicant admitted prior art in a challenged patent may not form the “basis” for an invalidity claim in an IPR proceeding. The Court explained that invalidity grounds advanced in an IPR must be based on patents or printed publications that are themselves prior art to the challenged patent. In reaching this conclusion, the Court relied on the 2019 Supreme Court opinion in Return Mail, Inc. v. U.S. Postal Serv., which referred to “patents and printed publications” in the context of § 311(b) as “existing at the time of the patent application.” The Court also looked to its own interpretations of “prior art consisting of patents or printed publications” in the context of ex parte reexamination proceedings under 35 U.S.C. §§ 301 and 303, which “permits the Director to institute a reexamination after ‘consideration of other patents or printed publications.’” Accordingly, the Court vacated the unpatentability [...]

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Establishing Indefiniteness Requires More Than Identifying “Unanswered Questions”

by Art Dykhuis | Feb 3, 2022 | Patents

The US Court of Appeals for the Federal Circuit reversed a district court finding of indefiniteness for focusing solely on the language of the claims and ignoring the specification and prosecution history. Nature Simulation Systems Inc. v. Autodesk, Inc., Case No. 20-2257 (Fed. Cir. Jan. 27, 2022) (Newman, Lourie JJ.) (Dyk, J., dissenting).

Nature Simulations Systems (NSS) asserted two patents against Autodesk that relate to packaging computer-aided data for three-dimensional objects. According to the patents, the claimed methods are improvements upon a “Watson” method known in the prior art. Following a Markman hearing that included technology tutorials from the named inventor and Autodesk’s expert, the district court considered whether two terms were indefinite: “searching neighboring triangles of the last triangle pair that holds the last intersection point” and “modified Watson method.”

The district court found both claim terms indefinite based on “unanswered questions” identified by Autodesk’s expert, who had raised three and four unanswered questions for the “searching” and “modified Watson” terms, respectively. NSS argued that all of the questions were answered in the specification, but the court held that “the claim language, standing alone” did not answer those questions. NSS appealed.

The Federal Circuit found flaws in the district court’s analysis because it adopted an incorrect “unanswered questions” analysis and analyzed the “claim language, standing alone.” The Court confirmed that the test for indefiniteness involves analyzing whether the claims provide reasonable certainty when viewed in light of the specification and prosecution history from the perspective of the person of ordinary skill in the art. Reviewing the specification, the Court observed that the text and figures of the specification of the asserted patents described the searching and intersection point process and the prior art Watson method and noted that the district court “declined to consider information in the specification that was not included in the claims.”

Reviewing the prosecution history, the Court further noted that both terms had been rejected during prosecution for indefiniteness, but that the examiner withdrew both rejections after amendments to the claims provided additional limitations. The Court faulted the district court for giving “no weight to the prosecution history showing the resolution of indefiniteness by adding the designated technologic limitations to the claims.” Instead, “PTO examiners are entitled to appropriate deference as official agency actions[.]” Ultimately, the Court observed that the claims were improvements to known methods, that it was undisputed the claims were described and enabled and that the examiner had held the claims to “define the scope of the patent subject matter.” For these reasons, indefiniteness was not established as a matter of law.

Judge Timothy B. Dyk dissented, stating that “[t]he fact that a patent examiner introduced the indefinite language does not absolve the claims from the requirements of 35 U.S.C. § 112.” Far from adopting a flawed “unanswered questions” analysis, Judge Dyk instead believed the court’s analysis was detailed and thorough, and that it was performed in view of the specification. Judge Dyk found the majority’s definition of the disputed terms inconsistent [...]

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Nailed It: Expert Must at Least Meet Ordinary Skill Level to Testify from POSITA Perspective

by Alexander P. Ott | Jan 27, 2022 | Patents

Addressing a US International Trade Commission (ITC) decision finding a § 337 violation as to one patent but no violation as to four other patents, the US Court of Appeals for the Federal Circuit reiterated that a technical expert must at least meet the level of ordinary skill in the art of the asserted patents to testify from the perspective of a person of ordinary skill in the art (POSITA), whether for claim construction, validity or infringement. Kyocera Senco Indus. Tools Inc. v. ITC, Case Nos. 20-1046, -2050 (Fed. Cir. Jan. 21, 2022) (Moore, C.J.; Dyk, Cunningham, JJ.)

In 2017, Kyocera filed a complaint at the ITC seeking a § 337 investigation based on infringement allegations for six patents directed to battery-powered gas spring nail guns. The investigation was assigned to the Chief Administrative Law Judge (ALJ), who, in the context of a Markman order, adopted Koki Holdings America Ltd.’s uncontested level of skill in the art as including “experience in powered nailer design.” After claim construction, Kyocera dropped one patent from the investigation and went forward with infringement under the doctrine of equivalents as the sole basis for violation for four other patents.

Prior to the evidentiary hearing, Koki moved to exclude Kyocera’s expert’s testimony due to their admission during deposition that they did not have the experience in powered nailer design required by the adopted level of ordinary skill in the art. The Chief ALJ held that the Federal Circuit’s decision in AquaTex Indus. v. Techniche Sols. expressly required that Kyocera’s expert’s testimony be excluded as to infringement under the doctrine of equivalents but permitted the expert to testify as to literal infringement on one patent and on claim construction. After the evidentiary hearing, the Chief ALJ issued an initial determination that relied, in part, on Kyocera’s expert to find a particular element satisfied on the one remaining patent where literal infringement was asserted, but ultimately found no infringement due to other claim limitations. The Chief ALJ’s noninfringement decision as to the one remaining patent was then overturned on review by the full ITC, which found a § 337 violation and issued a limited exclusion order.

Kyocera appealed the Chief ALJ’s exclusion of its expert’s testimony on doctrine of equivalents, and Koki cross-appealed on the Chief ALJ’s decision to allow Kyocera’s expert to testify as to literal infringement and claim construction. The Federal Circuit reversed the ITC’s decision, holding that it was error to permit any infringement testimony from Kyocera’s expert and explaining that a witness must at least have ordinary skill in the art to offer testimony from the perspective of a skilled artisan for claim construction, validity or infringement, whether literal or under the doctrine of equivalents.

Alexander Ott was a member of Koki’s ITC trial team and the Federal Circuit appeal team in this case.