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Joshua Weisenfeld is an associate in the Intellectual Property Group in the firm's San Diego (Del Mar) office.

In Ioengine, LLC v. Ingenico Inc. No. 2021-1227, 2021-1331, 2021-1332 (Fed. Cir. May 03, 2024), the case addresses the patentability/validity of three patents. In particular, this case discusses the application of the printed matter doctrine during inter partes review, the treatment of newly introduced claim constructions on appeal, and the PTAB’s anticipation and obviousness determinations.Continue Reading Interpreting the Printed Matter Doctrine in Inter Partes Review

In Malvern Panalytical Inc. v. TA Instruments-Waters LLC, the Federal Circuit addressed the proper construction of the claim term “pipette guiding mechanism.” Specifically, the Federal Circuit found the plain and ordinary meaning of “pipette guiding mechanism” sufficient and addressed how various claim construction doctrines affected its analysis, including the use of a non-related patent cited in an IDS as intrinsic evidence.Continue Reading Federal Circuit Vacates District Court’s Claim Construction of the Term “Pipette Guiding Mechanism”

This case addresses the validity of two patents asserted against wireless communications technologies. In particular, this case discusses claim construction and post-issuance claim amendments that broaden the scope of challenged claims.Continue Reading Sisvel International S.A. v. Sierra Wireless, Inc., No. 2022-1387, 2022-1492 (Fed. Cir. Sept 1, 2023)

This case addresses the validity of patents asserted against a high-density fiber optic equipment importer in violation of § 337. In particular, this case discusses enablement and claim construction as it relates to interpretation of open ended ranges and plural claim language.Continue Reading FS.COM INC. v. International Trade Commission Corning Optical Communications LLC – Intervenor No. 22-1228 (Fed. Cir. Apr. 20, 2023)

We are excited to share Sheppard Mullin’s inaugural quarterly report on key Federal Circuit decisions. The Spring 2023 Quarterly Report provides summaries of most key patent law-related decisions from January 1, 2023 to March 31, 2023.Continue Reading 2023 Federal Circuit Case Summaries