“Whether the Court’s ‘built-in apportionment’ doctrine is contrary to the Supreme Court’s rule in Garretson v. Clark, 111 U.S. 120 (1884), and should be overruled or at least limited to the unique circumstances presented in Commonwealth Scientific & Industrial Research Organisation v. Cisco Systems, Inc., 809 F.3d 1295 (Fed. Cir. 2015).”