( March 10, 2026, 1:12 PM EDT) -- WASHINGTON, D.C. — A Federal Circuit U.S. Court of Appeals panel on March 9 affirmed final written decisions by the U.S. Patent Trial and Appeal Board (PTAB), holding that the board did not abuse its discretion when it held that a technology company forfeited a new antedating argument during inter partes review (IPR) proceedings....