No Error of Claim Construction

Shanghai Meihao Electric, Inc. v. Leviton Manufacturing Company, Inc., [2006-1272, -1488](January 10, 2007)[CLEVENGER, Newman, and Dyk] Leviton appealed summary judgment of non-infringement, and the entry of an injunction against Leviton. The Federal Circuit affirmed in part and reversed in part. At issue was the district court’s construction of “operational” and “reset lock-out” in Leviton’s patents on ground fault circuit interrupters (“GFCIs”). The Federal Circuit found no error in the claim construction, and thus affirmed summary judgment. The Federal Circuit reversed an injunction against Leviton from accusing Meihao’s products of infringement, finding no showing of necessity.