Federal Circuit Undoes Infringement Findings For School Bus Sign Patents

( November 14, 2025, 10:38 AM EST) -- WASHINGTON, D.C. — A federal judge in Michigan wrongly construed the term “transparency” in an infringement dispute concerning patents related to a school bus sign, and it was unreasonable for a jury to find infringement under the doctrine of equivalents, a Federal Circuit U.S. Court of Appeals panel held Nov. 13; the panel reversed an infringement judgment as to one of the patents and vacated the infringement finding as to the other....