( May 8, 2026, 10:46 AM EDT) -- WASHINGTON, D.C. — A Federal Circuit U.S. Court of Appeals panel affirmed a decision from the U.S. Patent Trial and Appeal Board (PTAB) to find that the company formerly known as DraftKings Inc. failed to show that a single patent claim was invalid in its otherwise successful challenge of another company’s online gaming patent; the panel agreed with the PTAB that an argument regarding the patent claim was inappropriately raised for the first time in a footnote in a reply brief....