On January 27, 2022, the Court of Appeals for the Federal Circuit (“CAFC”) reversed the judgment of the United States District Court for the Northern District of California finding certain claims invalid on the ground of claim indefiniteness under 35 U.S.C. § 112(b), because the district court erred by applying an incorrect legal standard.  Nature Simulation Sys. Inc. v. Autodesk, Inc., __ F.4th __ (Fed. Cir. Jan. 27, 2022).

On September 10, 2021, Judge Richard G. Andrews of the U.S. District Court for the District of Delaware issued a Memorandum Opinion on claim construction.  Peloton Interactive, Inc. v. ICON Health & Fitness, Inc., No. 20-662-RGA, slip. op. (D. Del. Sept. 10, 2021).  Judge Andrews held that certain claims of the asserted patent containing “translator device…” limitations were invalid as indefinite under 35 U.S.C. § 112 ¶ 6 because they failed to disclose corresponding structure for the claimed function.

On September 9, 2021, the Court of Appeals for the Federal Circuit (CAFC) affirmed the decision of the Patent Trial and Appeal Board in a post-grant review proceeding construing the claim term “pressure control assembly” as a means-plus-function limitation and finding the challenged claims indefinite for lack of corresponding structure.  Team Worldwide Corp. v. Intex Recreation Corp., __ F.3d __ (Fed. Cir. Sept. 9, 2021)