Genuine Enabling Technology LLC v. Nintendo Co., Ltd. — Federal Circuit Reverses Claim Construction, Holds Extrinsic Evidence Cannot Create Scope Limit Not in Intrinsic Record
The Federal Circuit reversed a claim construction that relied on extrinsic expert testimony to impose a specific frequency threshold on the term “input signal,” holding that extrinsic evidence cannot establish a claim scope limit that has no basis in the patent’s intrinsic record.