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Patent Trial & Appeal Board

Not a Well-Crafted Housing: Product-by-Process Claim Element Isn’t Limiting

by Thomas DaMario | Aug 25, 2022 | Patents

The US Court of Appeals for the Federal Circuit affirmed a ruling that certain claims reciting a “housing . . . being cast in one piece” should be construed as a product-by-process claim element and affirmed the subsequent finding of invalidity of all challenged claims. Kamstrup A/S v. Axioma Metering UAB, Case No. 21-1923 (Aug. 12, 2022) (Reyna, Mayer, Cunningham, JJ.)

Kamstrup owns a patent directed to an ultrasonic flow meter housing in the form of a monolithic polymer structure that is cast in one piece. The patent specification explains that the invention can be fabricated with fewer steps compared to existing meters, since only a single step is used to form the monolithic polymer structure. Axioma petitioned for inter partes review of all claims of the patent, and the Patent Trial & Appeal Board (Board) found each claim unpatentable as either obvious or anticipated.

The Board construed the claim term “being cast in one piece” to be a product-by-process claim element. Kamstrup did not present any evidence showing that this claim element provided structural or functional differences distinguishing the housing itself from the prior art, and therefore the Board determined that the housing element was not entitled to patentable weight. The Board subsequently invalidated the independent claim and various dependent claims based on a prior art meter having a housing. The Board also found the remaining dependent claims to be invalid based on two additional references, which the Board determined were sufficiently analogous to flow meter technology to merit consideration in its obviousness analysis.

On appeal, Kamstrup challenged the Board’s product-by-process construction. The Federal Circuit explained that product-by-process claiming is designed to enable an applicant to claim an otherwise patentable product that resists definition other than by the process by which it is made. Where a product-by-process claim element is implicated, structural and functional differences distinguishing the claimed product from the prior art must be shown in order for that claim element to be relevant (limiting) to the anticipation or obviousness inquiry. If no structural or functional differences are shown, the element is given no patentable weight. Turning to the claim element at issue, the Court found that the plain meaning of the term “housing . . . being cast in one piece” implicated a product-by-process interpretation since it described the structure “being” cast in a particular way. The Court also affirmed the Board’s finding of invalidity because Kamstrup failed to identify any disclosure in the specification, prosecution history or extrinsic evidence of any structural or functional differences between the housing element as claimed and the prior art.

Kamstrup also argued that the two secondary prior art references were not analogous prior art because they fell within the field of “medical devices for thermodilution,” and therefore they should not be included in an obviousness analysis. The Federal Circuit disagreed, finding that the references were directed to “sensing or measuring fluid flow and fluid flow characteristics such as temperature,” which is related to “flow meters that include different types of sensors.”

Prior Art Citation to Inventors’ Report Not “By Another” for § 102(e)

by Paul Devinsky | Aug 25, 2022 | America Invents Act, Patents

The US Court of Appeals for the Federal Circuit found that a prior art patent’s summarization of a report authored by the inventors of a patent challenged under inter partes review (IPR) did not constitute a disclosure “by another” under pre-America Invents Act § 102(e). LSI Corp. v. Regents of Univ. of Minnesota, Case No. 21-2057 (Fed. Cir. Aug. 11, 2022) (Dyk, Reyna, Hughes, JJ.)

The Regents of the University of Minnesota (UMN) sued LSI Corporation and Avago Technologies (collectively, LSI) for infringement of a patent related to methods for reducing errors in binary data sequences. LSI petitioned for IPR, challenging several claims of the asserted patent and arguing that they were anticipated by two prior art references, Okada and Tsang. Tsang made reference to a “Seagate Annual Report” that was published by the inventors of the asserted patent, and which was later embodied in the patent’s application.

The Patent Trial & Appeal Board (Board) found that one of the challenged claims was anticipated by Okada. The Board also found that LSI had not shown that the other challenged claims were rendered unpatentable by either Okada or Tsang and further rejected an invalidity (anticipation) theory first raised by LSI during oral arguments as untimely (while noting that the argument failed even if timely raised). The Board determined that the Tsang reference was not “by another” under § 102(e) because LSI’s petition relied solely on material that was originally disclosed in the inventor’s Seagate Annual Report. LSI appealed the Board’s determinations relating to invalidity based on Okada or Tsang.

The Federal Circuit noted that LSI did not challenge the Board’s untimeliness determination and rejected LSI’s argument that it did not need to because the Board nevertheless reached a merits decision on the argument. The Court cited to its 2016 decision in Intelligent Bio-Systems v. Illumina Cambridge, which held that “the Board’s rejection of arguments on the ground that they were newly raised in a reply brief was not an abuse of discretion even though the Board went on to address the merits.”

Turning to the § 102(e) issue, the Federal Circuit first explained that an invention is anticipated under § 102(e) if the invention is described in a patent application filed “by another,” but a patent owner may overcome such anticipation by establishing that the relevant prior art disclosure describes the owner’s invention. Describing the history of the Tsang reference and the patent under review, the Court explained that the inventors originally submitted a Seagate Annual Report to Seagate, a UMN collaborator. Tsang, a Seagate employee, received the report and quickly filed a patent application for an improvement on the methods described in the report. This application listed only Tsang as inventor and made direct reference to the Seagate Annual Report.

The Federal Circuit then addressed whether LSI’s IPR petition relied on Tsang’s improvement to the inventors’ report or simply on Tsang’s summary of the inventors’ report. The Court explained that while LSI’s petition relied on both Tsang’s summary of the [...]

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Recapture Rule Applies to Subject Matter Surrendered to Overcome § 101 Rejection

by Paul Devinsky | Aug 18, 2022 | Patents

Affirming a Patent Trial & Appeal Board (Board) decision, the US Court of Appeals for the Federal Circuit held, for the first time, that the rule prohibiting recapture of subject matter surrendered during prosecution applies to subject matter surrendered to overcome a § 101 patent eligibility rejection. In re McDonald, Case No. 21-1697 (Fed. Cir. Aug. 10, 2022) (Newman, Stoll, Cunningham, JJ.)

During prosecution of a parent patent application relating to displaying search results, the inventor, John McDonald, added a “processor” limitation to certain claims to overcome a § 101 rejection. McDonald subsequently filed a continuation application, which was eventually issued. McDonald then filed a reissue application seeking to broaden the claims of the continuation patent by striking all of the originally added “processor” claim language. With the reissue application, he included a declaration that the processor language was unnecessary to the patentability and operability of the relevant claims. The examiner rejected the claims as obvious, and McDonald appealed. On appeal, the Board affirmed the obviousness rejection and also rejected the reissue claims as being based on a defective declaration lacking a correctable error. The Board found that McDonald was impermissibly attempting to recapture surrendered subject matter. McDonald appealed.

Exercising de novo review, the Federal Circuit first recounted more than a century of caselaw relating to patent reissue and recapture. The Court explained that a patent may be reissued if the inventor erroneously claimed less than they had a right to claim in the original patent, but that the recapture rule bars a patentee from regaining that which was surrendered during prosecution. The Court then turned to its three-step recapture analysis in which it considers the following:

Whether, and in what aspect, the reissue claims are broader than the patent claims
If broader, whether those broader aspects of the reissue claim relate to the surrendered subject matter
If they do, whether the surrendered subject matter has crept into the reissue claim.

Applying this test, the Court concluded that McDonald sought to broaden his claims and that the surrendered subject matter crept into those broadened claims. The Court also held that McDonald did not meet the reissue statute’s “error” requirement, finding that his actions were deliberate as opposed to inadvertent or by mistake.

The Federal Circuit then addressed McDonald’s arguments that the recapture rule does not apply to subject matter surrendered to overcome a § 101 rejection. The Court conceded that its previous decisions centered on prior art rejections under § 102 and § 103 but found that the public’s reliance interest on a patent’s public record must also apply to subject matter surrendered under § 101. The Court also reiterated that it “reviews a patent family’s entire prosecution history when applying both the rule against recapture and prosecution history estoppel.” The Court thus affirmed the Board’s decision barring McDonald from reclaiming subject matter previously surrendered during prosecution.

Argument Forfeit in Remand Notwithstanding Modified Claim Construction

by Tim Dunker | Aug 4, 2022 | Patents

In the second appeal arising from an inter partes review (IPR), the US Court of Appeals for the Federal Circuit found that its revised claim construction from the first appeal did not permit the patent challenger to raise a new argument in a remand proceeding at the Patent Trial & Appeal Board (Board) since the patent owner’s response in the original proceeding had sufficiently put the challenger on notice of the claim construction that was adopted in the first appeal. Wireless Protocol Innovations, Inc. v. TCT Mobile, Inc., Case No. 21-2112 (Fed. Cir. July 19, 2022) (Prost, Taranto, Chen, JJ.)

Wireless Protocol Innovations (WPI) owns a patent related to controlling data flow in a point-to-multipoint communications system. WPI filed a district court complaint in 2015 asserting the patent against TCT. In response, TCT filed IPR petitions challenging certain claims of the patent. The petition presented three grounds of unpatentability, one of which relied on a reference by Sen. TCT’s petition did not propose constructions for any claim terms and argued that Sen taught the “grant pending absent state” limitation of the challenged patent. WPI argued that Sen failed to disclose “transitioning” between the “grant pending absent” and “grant pending” states after a “subsequent bandwidth grant,” as required by the claims. In its reply, TCT maintained that Sen taught the limitation but never argued that Sen could be readily modified to include a “grant pending absent state.” The Board found all of the challenged claims to be unpatentable on two grounds, one of which relied on Sen. WPI appealed.

The Federal Circuit reversed the Board’s decision with respect to the first ground, vacated the Board’s decision relying on Sen because the Board applied a flawed claim construction of “grant pending absent state,” and remanded the IPR for the Board to reconsider in view of the Court’s new claim construction. The Court also specifically declined to “prejudge what arguments TCT has properly preserved or should now be permitted to advance or what determinations as to Sen, Rydnell, and admitted prior art are supported by the evidence.”

On remand, the Board allowed the parties to submit additional briefing and expert testimony limited to the issue of whether Sen described operating a consumer premises equipment (CPE) in a “grant pending absent state” as interpreted by the Federal Circuit. TCT maintained its argument that Sen disclosed a grant pending absent state and argued for the first time that, in the alternative, it would have been obvious to a person skilled in the art to modify Sen to meet the limitation. The Board issued a remand decision finding the challenged claims unpatentable. Again, WPI appealed.

The Federal Circuit found that TCT had failed to preserve its new claim construction and obviousness argument and that “failure to timely assert a right or raise an argument constitutes forfeiture.” The Court explained that TCT acknowledged that it understood, prior to its reply, that WPI sought to distinguish the claimed “grant pending absent state” from Sen because Sen involved some [...]

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Clearly, the Disclosure Was an Error

by Vincent Li, PhD | Jul 21, 2022 | Patents

The US Court of Appeals for the Federal Circuit affirmed a Patent Trial & Appeal Board (Board) finding that claimed subject matter was not disclosed in asserted prior art where the prior art reference contained an “obvious error of a typographical or similar nature that would be apparent to one of ordinary skill in the art,” even though the error went unrecognized and uncorrected for 20 years until an expert conducted an extensive analysis. LG Electronics Inc. v. ImmerVision, Inc., Case Nos. 21-2037; -2038 (Fed. Cir. Jul. 11, 2022) (Stoll, Newman, Cunningham, JJ.) (Newman, J., dissenting)

The issue before the Federal Circuit was whether an error in the prior art that remained uncorrected in the public domain for 20 years and took an expert many hours of analysis to uncover, was an obvious error that would meet the standard set in the 1970 Court of Customs and Patent Appeals (CCPA) case In re Yale. Since the CCPA is a predecessor court to the Federal Circuit, its decisions are mandatory authority. Under the Yale standard, “where a prior art reference includes an obvious error of a typographical or similar nature that would be apparent to one of ordinary skill in the art who would mentally disregard the errant information as a misprint or mentally substitute it for the correct information, the errant information cannot be said to disclose subject matter. . . . The remainder of the reference would remain pertinent prior art disclosure.”

The patent at issue pertains to capturing and displaying panoramic images using an objective lens. The claims require a certain image point distribution function and that the objective lens “compresses the center of the image and the edges of the image and expands an intermediate zone of the image located between the center and the edges of the image.”

LG’s expert reconstructed a lens depicted in an embodiment of the asserted prior art using information found in Table 5 of the reference. Based on this reconstruction, LG argued that certain limitations of the claims at issue were found in a prior art patent to Tada, and thus the claims at issue were obvious.

ImmerVision had its own expert attempt to create the same lens model based on the same information. However, ImmerVision’s expert noticed something was wrong, as the resulting output image from the lens was distorted. Upon further investigation, ImmerVision’s expert discovered that the disclosure in Tada Table 5, on which LG’s expert relied, was intended to correspond to a different embodiment. The inconsistency was caused by a transcription error from the Japanese priority application in terms of the embodiment associated with Table 5. It was undisputed that when the correct values were used, the subject matter was not disclosed.

The question on appeal was whether the Board correctly held that the error in Tada would have been apparent to a person of ordinary skill in the art such that the person would have disregarded the disclosure or corrected the error to meet the Yale standard. [...]

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Since Vacatur Seeks Equitable Relief, Clean Hands Matter

by McDermott Will & Emery | Jun 30, 2022 | Patents

In an opinion related to its 2021 ruling that a decision in earlier inter partes reexaminations of related patents had a preclusive effect that collaterally estopped the Patent Trial & Appeal Board (Board) from making new findings on the same issue, the US Court of Appeals for the Federal Circuit vacated the Board’s decision on remand since the patent at issue expired. SynQor, Inc. v. Vicor Corp, Case No. 20-1259 (Fed. Cir. Jun. 17, 2022) (Chen, Prost, JJ.), (Lourie, J., dissenting) (non-precedential).

Background

After being sued by SynQor, Vicor petitioned for reexamination of several SynQor patents (including the ’021 and ’190 patents). In the ’190 patent reexamination proceeding, Vicor successfully argued that the ’190 patent claims (including new claims sought to be added by SynQor) were unpatentable over two references. After appeals to the Board (which reversed the examiner) and Federal Circuit (which reversed-in-part, vacated-in-part), the case was remanded to the Board to consider the examiner’s obviousness rejections in light of the Court’s conclusion that prior art patents anticipated certain claims.

On remand, the Board affirmed almost all of the examiner’s rejections and applied a new ground of rejection to one of SynQor’s proposed new claims. However, before the Board issued its final decision regarding the new claims, the ’190 patent expired and SynQor appealed to the Federal Circuit to vacate the Board’s decisions regarding the new claims on the ground that the ’190 patent’s expiration rendered the Board’s patentability decision moot. The Court agreed and vacated the Board’s decisions, explaining that the inability to issue the new claims meant that “the Board’s patentability determinations were unreviewable for mootness” since the Court would be “frustrated by the vagaries of circumstance” (thereby falling under the Supreme Court’s Munsingwear doctrine) from reviewing the Board’s determinations on the merits.

Similarly, in the ’021 patent’s reexamination, the examiner rejected all challenged claims, including two new claims that SynQor proposed. The Board affirmed the examiner’s rejections, and on appeal the Federal Circuit affirmed-in-part, vacated-in-part and remanded for the Board to reconsider two obviousness grounds it deemed the Board had unjustifiably reached inconsistent conclusions on (relative to a separate reexamination proceeding for another related patent). On remand, the Board again found SynQor’s proposed new claims unpatentable, unaware that the ’021 patent had expired over a year prior. In its rehearing petition, SynQor informed the Board of the ’021 patent’s expiration and asked the Board to vacate its decision on the merits. SynQor appealed after the Board declined to do so.

Appeal on the ’021 Patent

On appeal, SynQor requested that the Federal Circuit vacate the Board’s decision (for the same reasoning as in the ’190 patent appeal). Vicor argued that the Court lacked Article III jurisdiction to consider the request, and that SynQor was not entitled to equitable relief because of its failure to inform the Board of the ’021 patent’s expiration date, which caused the remand decision to be issued. Vicor also argued that the timing of the ’021 patent expiring before [...]

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Clarification or Raising the Bar? PTO Director Issues New Guidance for Discretionary PTAB Denials

by Thomas DaMario | Jun 30, 2022 | America Invents Act, Patents

On June 21, 2022, US Patent & Trademark Office (PTO) Director Katherine K. Vidal issued a memorandum addressing interim procedures for discretionary denials in America Invents Act (AIA)-post grant proceedings at the Patent Trial & Appeal Board (Board). In 2020, in order to minimize the potential conflict between the Board and parallel district court proceedings, the PTO designated the Board’s opinion in Apple v. Fintiv as precedential. Since Fintiv, the Board has issued several discretionary denials of institution based on parallel proceedings in district (and in some cases other administrative) courts. Director Vidal’s memo seeks to provide additional guidance on the PTO’s interpretation of Fintiv and its progeny and addresses multiple factors that were previously left to individual administrative law judge (ALJ) interpretation.

The memo includes rendering an initial evaluation of the merits of the petition. In particular, the Board will not deny institution of an inter partes review (IPR) or post-grant review (PGR) under Fintiv when a petition presents compelling evidence of unpatentability. This standard is higher than the institution standard, which requires only that “there is a reasonable likelihood that petitioner would prevail with respect to at least 1 of the claims challenged in the petition.” While the memo does not elaborate on the evidence required to meet this compelling standard, numerous decisions were cited as illustrative. (See: e.g., Illumina Inc. v. Trs. of Columbia Univ., IPR2020-00988, Paper 20 (PTAB Dec. 8, 2020); Synthego Corp. v. Agilent Techs., Inc., IPR2022-00402, Paper 11 (May 31, 2022); Samsung Elecs. Co. v. Scramoge Tech., Ltd., IPR2022-00241, Paper 10 (June 13, 2022).)

Additionally, Director Vidal confirmed that Fintiv does not apply to parallel proceedings before the International Trade Commission nor where there has been a stipulation not to pursue the same grounds in a district court proceeding. The stipulation applies to grounds that are actually raised in the petition and any grounds that could have reasonably been raised in the petition, suggesting that there may be some dispute later in the district court proceeding about what grounds “could have reasonably been raised in the petition.”

Finally, the memo clarified the second factor of the Fintiv analysis: the speed with which the district court case may go to trial and be resolved. The Board will consider not only the scheduled trial date, but also the median time-to-trial for the particular district court, number of cases before the specific district court judge and the speed and availability of other dispositions.

Practice Note: While the standard for institution has not changed, the new compelling standard effectively ups the bar for any IPR, PGR or covered business method (CBM) proceedings where there is a parallel district court case. Prior to filing a new petition, patent challengers should objectively weigh the merits of their challenge or consider stipulating not to pursue the same invalidity grounds in the parallel district court proceeding.

Claim Construction and Jurisdictional Discovery Are More Than Skin Deep

by Mike Baldwin | Jun 23, 2022 | Patents

Referencing the use of antecedents from a “wherein” clause, the US Court of Appeals for the Federal Circuit reversed a district court’s claim construction and vacated its summary judgment ruling of indefiniteness that relied on that construction. University of Massachusetts v. L’Oréal S.A., Case No. 21-1969 (Fed. Cir. June 13, 2022) (Prost, Mayer, Taranto, JJ.) The Court also reversed the dismissal of a defendant based on personal jurisdiction, finding error in the district court’s refusal to permit jurisdictional discovery before granting a motion to dismiss on that basis.

This case involved two patents directed towards the topical treatment of skin with a composition of adenosine at a certain concentration, held by the University of Massachusetts (UMass). L’Oréal is French-based company (L’Oréal S.A.) and its US-based company (L’Oréal USA) were involved in the suit. L’Oréal S.A. moved to dismiss for lack of personal jurisdiction, and the district court granted the motion without an opportunity for UMass to conduct jurisdictional discovery. After the dismissal, the district court ruled on the construction of a claim limitation and subsequently wielded that construction to invalidate another limitation as indefinite. The district court entered a final judgment of invalidity on this basis. UMass appealed, challenging the claim construction and lack of jurisdictional discovery.

Construction Using “Wherein” Clause

The Federal Circuit explained that there are two steps in reviewing claim construction: determining whether there is a plain meaning of a disputed term and, as necessary, properly construing the term. After determining that there was no plain meaning of the claim term “concentration,” the Court addressed the construction of the phrase “topically applying to the skin a composition comprising a concentration of adenosine.” The Court found that the district court erred in its determination that the “concentration applied to the dermal cells” meant that the concentration must be measured by the concentration directly applied to the dermal cells beneath the skin, rather than the composition applied to the surface of the skin. The Patent Trial & Appeal Board had adopted the same interpretation in an inter partes review, and therefore “concentration applied to the dermal cells” required no further construction.

UMass challenged that the proper construction. The Federal Circuit, citing to support in the specification, stated that the concentration of adenosine found in the composition should be construed as that applied to the epidermis. Viewing the claim as a whole and use of antecedents, the Court explained that “applied” could relate to both direct and indirect application. The Court specifically noted the use of the word “the” in the wherein clause, and found that this read, for antecedent, as the concentration of the composition. In viewing the prosecution history, the Court determined there was no disavowal of indirect application, and the specification and dependent claims supported a read of the term “concentration” to mean the composition applied to the surface of the skin, rather than requiring testing of the concentration to which the dermal cells were actually exposed. The Court also noted that in the prosecution history, UMass [...]

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Co-Authorship ≠ Co-Inventorship but Can Be Supportive of Inventive Contribution

by Cecilia Choy, Ph.D. | Jun 9, 2022 | Patents

The US Court of Appeals for the Federal Circuit vacated and remanded a Patent Trial & Appeal Board (Board) decision because it failed to resolve fundamental testimonial conflict relating to inventive contribution and complete the Duncan Parking analysis. Google LLC v. IPA Technologies Inc., Case Nos. 21-1179; -1180; -1185 (Fed. Cir. May 19, 2022) (Dyk, Schall, Taranto, JJ.)

Under Duncan Parking, analyzing whether a reference patent is “by another” requires the following three steps:

Determining what portions were relied on as prior art to anticipate the claim limitations at issue
Evaluating the degree to which those portions were conceived by another
Deciding whether that other person’s contribution is significant enough to render them a joint inventor of the applied portions of the reference patent.

SRI International filed two patent applications in 1999 related to the software-based Open Agent Architecture (OAA) and listed Martin and Cheyer as the inventors. In March 1998, an academic paper describing the OAA project was published and named these inventors and Moran as co-authors (Martin reference). During prosecution, the examiner identified the Martin reference as prior art and rejected the claims. SRI asserted that the Martin reference was not prior art because it was made by the same inventive entity as the patents. The patents were granted and assigned to IPA.

Google petitioned the Board for inter partes review of the patent claims. Google argued obviousness in view of the Martin reference and asserted that since the authors of the Martin reference (Martin, Cheyer, Moran) were not the same as the named inventive entity (Martin, Cheyer), the Martin reference was prior art “by others.” The Board instituted review but decided that Google did not meet its burden to provide sufficient support in establishing the correct inventive entity of the claimed subject matter and concluded that Moran’s testimony was insufficiently corroborated. Google appealed.

First, the Federal Circuit discussed the differences between burdens of persuasion and production and responded to Google’s argument that the Board improperly imposed a burden of proof. The Court found no error in the Board requiring Google to establish that the Martin reference was prior art “by another” by showing that Moran made a significant-enough contribution to qualify as a joint inventor on the relevant portions of the Martin reference.

Second, the Federal Circuit explained that the issue in this case was not the lack of corroboration for Moran’s testimony but rather whether his testimony should be credited over Cheyer and Martin’s conflicting testimony. The Court explained that to address joint inventorship under Duncan Parking, Moran “must have made an inventive contribution to the portions of the reference relied on and relevant to establishing obviousness.” Moran’s testimony could support co-inventorship of portions in the Martin reference relied on by Google and relevant to the challenged claims.

The Federal Circuit explained that although most corroboration cases involve issued patents, corroboration is also required for testimony that an individual is an inventor of a potentially invalidating, non-patent prior art reference. The record contained “more [...]

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“Self-Similar” More Objective Than One Might Think

by Art Dykhuis | Jun 9, 2022 | Patents

The US Court of Appeals for the Federal Circuit affirmed a Patent Trial & Appeal Board (Board) decision holding that the term “self-similar” was not indefinite and denying leave to file a sanctions motion. ClearOne, Inc. v. Shure Acquisition Holdings, Case No. 2021-1517 (Fed. Cir. June 1, 2022) (Moore, Newman, Hughes, JJ.)

Shure owns a patent relating to arrays of microphones and housings that can be fitted to a drop ceiling grid, providing “equivalent beamwidth performance at any given look angle.” During inter partes review, Shure moved to amend the claims to add a new claim reciting microphones “arranged in a self-similar configuration.” The Board granted that motion, holding that “self-similar” was not indefinite. The Board denied ClearOne’s motion for rehearing and separate motion for sanctions alleging a failure to disclose prior that Shure had asserted in a post-grant review initiated against one of ClearOne’s patents.

The Federal Circuit first reviewed the Board’s indefiniteness holding. Since “[d]efiniteness is a matter of claim construction,” the Court applied de novo review while reviewing underlying factual determinations for substantial evidence. The Court held that the intrinsic record alone supported the Board’s definiteness finding because it provided the scope of “self-similar” with reasonable certainty. The specification disclosed microphones arranged in a “self-similar or repeating configuration”; a “fractal, or self-similar, configuration surrounding a central microphone”; and arrangements in circular or other repeating shapes, such as “ovals, squares, rectangles, triangles, pentagons, or other polygons.” Thus, “self-similar,” when read in view of the specification, informed skilled artisans about the scope of the invention with reasonable certainty.

The Federal Circuit rejected ClearOne’s argument that “self-similar or fractal-like” and “self-similar or repeating” distinguished self-similar from other types of patterns, holding that in context, it was clear that the phrases equated, not juxtaposed, self-similar with those patterns. Reviewing the extrinsic evidence, the Court also rejected ClearOne’s arguments premised upon “a series of rhetorical questions to show [ClearOne’s] varying interpretations of the self-similar term.” The possibility of varying interpretations, the Court held, “does not render [a term] indefinite,” as otherwise nearly every term would be indefinite if susceptible to alternative plausible constructions.

The Federal Circuit also rejected ClearOne’s motion for leave to seek sanctions. The Board held that allowing the sanctions motion would lead to an inefficient proceeding because the sanctions motion raised the same arguments as the denied request for rehearing, a ruling that ClearOne conceded on appeal. The Board also found a lack of intent to breach a duty to disclose references. Without analysis and applying the abuse of discretion review standard, the Court found that these factual determinations sufficiently established that the Board did not abuse its discretion.

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