( December 18, 2025, 2:18 PM EST) -- WASHINGTON, D.C. — A partly split Federal Circuit U.S. Court of Appeals panel on Dec. 17 reversed a Delaware federal judge’s ruling that a defendant-appellant car seat manufacturer infringed a patent describing a convertible car seat product and ordered a new trial on willful infringement because the judge abused discretion in excluding an email chain that allegedly contained evidence of willful infringement....