Claim Construction Should Be Well-Grounded in Both Intrinsic and Extrinsic Evidence

Jan 15, 2024 ACTELION PHARMACEUTICALS LTD v. MYLAN PHARMACEUTICALS INC. Decided: November 6, 2023 Before REYNA, STOLL, and STARK, Circuit Judges. Summary       The Federal Circuit ruled that the patent claim term “a pH of 13 or higher” could not be interpreted solely based on the patent’s intrinsic evidence. The court remanded the case to the district court, […] READ MORE