( October 16, 2025, 1:08 PM EDT) -- WASHINGTON, D.C. — A panel in the Federal Circuit U.S. Court of Appeals on Oct. 15 affirmed a finding by the U.S. International Trade Commission (ITC) that certain claims of a water filter patent held by Brita LP were invalid for lack of written description and lack of enablement because the patent does not disclose the full scope of filter material covered by its claims that do not meet a claimed performance metric....