unpatentable Archives

New Arguments Yield Same Unpatentability Outcome

by Karen Gover | Jun 13, 2024 | Patents

On remand from the US Court of Appeals for the Federal Circuit in connection with inter partes review (IPR) proceedings, the Patent Trial & Appeal Board considered the petitioner’s reply arguments and evidence regarding the claim constructions that were first proposed in the patent owner’s response but again found that the claims were not unpatentable. Axonics, Inc. v. Medtronic, Inc., IPR2020-00712; -00680 (May 30, 2024) (Tartal, Jeschke, Dougal, APJ)

Axonics filed IPR petitions challenging two patents owned by Medtronic that are directed to the transcutaneous charging of implanted medical devices. In its petitions, Axonics did not propose any express claim constructions. In its preliminary response, Medtronic agreed that claim construction was not necessary. In its patent owner response, however, Medtronic – for the first time – advanced a new claim construction that differed from the interpretation of the relevant claims implied in Axonics’s claim charts. Axonics defended its own implicit construction but also offered new arguments and evidence that the prior art anticipated the patents even under the alternative construction. The Board adopted Medtronic’s new claim construction but refused to consider Axonics’s new arguments and evidence because they were first presented in the reply. The Board then found that Axonics failed to show by a preponderance of the evidence that the challenged claims were unpatentable. Axonics appealed.

Axonics did not dispute the new claim construction first introduced by Medtronic in its response and adopted by the Board; it argued only that the Board erred in refusing to consider its reply arguments and evidence under the new construction. The Federal Circuit agreed, concluding that in such a situation, “a petitioner must be given the opportunity in its reply to argue and present evidence of anticipation or obviousness under the new construction, at least where it relies on the same embodiments for each invalidity ground as were relied on in the petition.” The Court remanded for the Board to consider Axonics’s new arguments.

On remand, the Board considered Axonics’s new arguments and evidence that the challenged claims were unpatentable over the prior art under the new construction. It also considered Medtronic’s amended sur-reply. The Board again determined that none of the challenged claims were unpatentable. In its analysis, the Board pointed out that some of Axonics’s new arguments and evidence regarding what the prior art disclosed in light of the new claim construction were inconsistent with the arguments and evidence it initially offered in its petition. In particular, the Board observed that the declaration testimony of Axonics’s expert regarding the prior art, on which Axonics relied in its petition, did not support the new claim construction, even considering the expert’s supplemental declaration. The Board also rejected Axonics’s attempts in its post-remand brief to discredit Medtronic’s arguments as “untimely and wrong,” “incorrect” and “contradictory of the positions on infringement it has taken in district court.” Citing the Federal Circuit, the Board pointed out that in an IPR, the burden of persuasion to prove unpatentability by a preponderance of the evidence [...]

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Claim Duality: Multiple Dependent Claims Can Be Both Patentable and Unpatentable

by Tim Dunker | Mar 9, 2023 | Patents

Addressing, for the first time, the issue of patentability of multiple dependent claims under 35 U.S.C. § 112, fifth paragraph, the Director of the US Patent & Trademark Office (PTO) granted rehearing and modified the Patent Trial & Appeal Board’s (Board) Final Written Decision after finding that the patentability of a multiple dependent claim should be considered separately as to each of the claims from which it depends. Nested Bean, Inc. v. Big Beings US Pty. Ltd. et al., IPR2020-01234 (PTO Feb. 24, 2023) (Vidal, Dir.) (precedential).

Nested filed a petition for inter partes review challenging claims 1 through 18 of a patent owned by Big Beings. Claims 1 and 2 were independent, and claims 3 to 16 were multiple dependent claims, which depended directly from either claim 1 or 2. The Board granted institution and ultimately issued a Final Written Decision finding that Nested did not establish that claims 1, 17 and 18 were unpatentable, but that Nested had established that claims 2 through 16 were unpatentable.

Big Beings filed a Request for Director review, noting that each of claims 3 to 16 were multiple dependent claims that depended from both claims 1 and 2. Big Beings argued that because the Board found that Nested failed to show that claim 1 was unpatentable, the Board should have also found that Nested failed to show that claims 3 through 16, as depending from claim 1, were unpatentable. The Director granted review.

35 U.S.C. § 112, fifth paragraph, states, in relevant part, “[a] multiple dependent claim shall be construed to incorporate by reference all the limitations of the particular claim in relation to which it is being considered.” Big Beings argued that the statute requires the Board to separately consider the patentability of alternative dependencies of a multiple dependent claim. Nested responded by arguing that the statute should be read so that if any version of a multiple dependent claim is found unpatentable over the prior art, then all versions of the claim should be found unpatentable.

The Director found that this was an issue of first impression. Relying on 37 C.F.R. § 1.75(c) and 35 U.S.C. § 282, the Director concluded that “a multiple dependent claim is the equivalent of several single dependent claims. Thus, in the same way that the unpatentability of multiple single dependent claims would each rise or fall separately, so too should the dependent claims covered by a multiple dependent claim.” The Director also noted that the Federal Circuit in Dow Chemical and Dayco Products explained that “not addressing claim validity on an individual basis is an error and contravenes 35 U.S.C. 282[.]” The PTO Director concluded, quoting the Manual of Patent Examining Procedure (MPEP), that “a multiple dependent claim must be considered in the same manner as a plurality of single dependent claims.”

Only under Rare Circumstances Can the Patent Trial & Appeal Board Find Proposed Substitute Claims Unpatentable on Its Own

by James M. Oehler | Mar 31, 2022 | Patents

The US Court of Appeals for the Federal Circuit addressed, for the first time, the issue of when the Patent Trial & Appeal Board (Board) may raise a ground of unpatentability that was not advanced by a petitioner in relation to proposed substitute claims. The Court upheld the standard defining the “rare circumstances” in which such a ruling is proper while questioning the Board’s reasoning and application of the standard. Hunting Titan, Inc. v. DynaEnergetics Europe GMBH, Case Nos. 20-2163; -2191 (Fed. Cir. Mar. 24, 2022) (Prost, C.J., Reyna, Hughes, JJ.) (Prost, C.J., concurring).

Hunting Titan challenged DynaEnergetics’ patent in an inter partes review (IPR) based on anticipation and obviousness grounds. The Board found all the original claims of the patent unpatentable as anticipated. DynaEnergetics moved to amend to add proposed substitute claims. Hunting Titan opposed the motion to amend but advanced only obviousness grounds against the proposed substitute claims. The Board determined sua sponte that the proposed substitute claims were unpatentable as anticipated and, therefore, denied the motion to amend. DynaEnergetics requested rehearing, and the Precedential Opinion Panel (POP) reversed the Board’s denial of the motion to amend and determined that Hunting Titan did not prove that the proposed substitute claims were unpatentable.

The POP decided that “only under rare circumstances” should the Board sua sponte raise a ground for unpatentability not advanced by the petitioner in relation to proposed substitute claims. The rare circumstances include only two situations:

When the petitioner is not involved in the motion to amend, such as when a petitioner chooses not to oppose the motion or ceases to participate in the proceeding altogether
When evidence of unpatentability is readily identifiable and persuasive, such as if the substitute claims are unpatentable for the same reasons as the original claims.

The POP stated that in most circumstances, it is best to rely on the adversarial system and expect the petitioner to raise the unpatentability grounds for consideration.

The Federal Circuit upheld the POP’s standard for when the Board may sua sponte find proposed substitute claims unpatentable but also found the POP’s reasoning “problematic” because it placed too much emphasis on the adversarial system. The Court noted that Board proceedings, such as IPRs, are fundamentally a review of an earlier administrative proceeding, as opposed to civil litigation, The POP’s rationale was based on the public interest being served by an adversarial system rather than on the public interest being served by maintaining integrity of the patent system.

The Federal Circuit also questioned the POP’s application of its new standard to the case at hand, noting that the readily identifiable evidence exception should have been applied when the Board found the proposed substitute claims unpatentable for the same reasons it found the original claims to be unpatentable.

In her concurring opinion, Chief Judge Prost noted that “[i]t makes little sense to limit the [Board], in its role within the agency responsible for issuing patents, to the petitioner’s arguments.” Instead, “the Board must determine whether the [...]

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