( September 21, 2026, 11:22 AM EDT) -- WASHINGTON, D.C. — In a pair of opinions, a Federal Circuit U.S. Court of Appeals panel ordered new trials on validity in two disputes over plaintiff-appellee entities’ patent on a float tool for use in oil wells, holding that a Texas judge erred in construing a claim relevant to both cases; the panel vacated an infringement win for the plaintiff-appellees in one of the cases but preserved a contributory infringement judgment in the other....