( April 24, 2026, 12:08 PM EDT) -- WASHINGTON, D.C. — In a mixed result, a Federal Circuit U.S. Court of Appeals panel on April 23 affirmed a New York federal judge’s finding that some patent claims asserted against Google LLC and YouTube LLC in an infringement dispute were invalid as indefinite but reversed summary judgment as to other claims; the panel held that factual questions remained regarding whether an accused Google Content ID system met a claim limitation requiring a “‘sublinear’” search....