suit is immunized.” Matsushita Electronics Corp., 974 F.Supp. at 355 (quoting Professional Real Estate Investors, Inc. v. Columbia Pictures Industries, Inc., 508 U.S. 49, 60, 113 S.Ct. 1920, 123 L.Ed.2d 611 (1993)). To make this determination, this Court must look to federal patent law to provide guidance on whether Eastern was reasonable in its belief of the validity of its patent, and whether the March letter to B & G was an appropriate way for Eastern to protect its rights as a patent holder. See Mikohn Gaming Corp. v. Acres Gaming, Inc., 165 F.3d 891, 896 (Fed.Cir.1998) (“To the extent that conflict arises in the interaction between state commercial law and federal patent law, federal law must be applied”); Hunter Douglas, Inc. v. Harmonic Design, 153 F.3d 1318, 1321 (Fed.Cir.1998) (<HOLDING>), overruled in non-pertinent part by Midwest
holding the state law claims were not preempted holding that  1338a jurisdiction inures when a complaint establishes that federal patent law creates the cause of action or that the plaintiffs right to relief necessarily depends on resolution of a substantial question of federal patent law in that patent law is a necessary element of one of the wellpleaded claims holding that the plaintiffs state law claims are preempted by federal law holding that the application of an element of a state law tort is preempted if in holding a defendant hable for the conduct  there would be conflict with federal patent law holding that plaintiffs state law tort actions against private military contractors working for the federal government were preempted by federal law