Speedtrack, Inc. v. Wal-Mart.Com USA, LLC, et al. DC CAFC

The Federal Circuit has just upheld a California court’s claim construction order that ended a long-running case filed by SpeedTrack, Inc. against a variety of retailers, including Amazon, Best Buy, and Costco. On June 3, the appellate court issued a precedential decision that affirmed a February 2020 ruling from Northern District of California Judge Jeffrey S. White that narrowed a key claim term from the asserted search patent due to prosecution history disclaimer, which per the Federal Circuit prevents a patentee from “recapturing through claim interpretation specific meanings disclaimed during prosecution”.