( January 21, 2026, 12:56 PM EST) -- WASHINGTON, D.C. — A split Federal Circuit U.S. Court of Appeals panel on Jan. 20 reversed a Pennsylvania federal judge’s decision to exclude two expert witnesses in a dispute brought by a physician who claims DePuy Synthes Sales Inc. and related DePuy entities induced surgeons to infringe certain claims of his patents; the panel majority held that the judge wrongly treated claim construction and survey methodology questions as admissibility issues and not questions for a jury....