Federal Circuit Upholds Westport Fuel Systems’ Patents in Key Obviousness Challenge Ruling
The United States Court of Appeals for the Federal Circuit affirmed the Patent Trial and Appeal Board’s (PTAB) decision not to nullify claims in two fuel injection patents held by Westport Fuel Systems Canada Inc. This ruling upheld the PTAB’s earlier finding that neither Mercedes-Benz nor an unnamed engineering company sufficiently demonstrated the patents’ obviousness….