( September 9, 2026, 12:48 PM EDT) -- WASHINGTON, D.C. — A Federal Circuit U.S. Court of Appeals panel on Sept. 8 affirmed a California federal judge’s decision to award more than $700,000 in attorney fees against a plaintiff-appellant entity in a dispute over patents covering three-dimensional sensing technologies, finding that the record does not establish that the plaintiff-appellant conducted an adequate presuit investigation....