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

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