Judge Newman’s dissent in Enzo Biochem, Inc. v. Applera Corp., 780 F.3d 1149 (Fed. Cir. 2015), demonstrates that the Federal Circuit is struggling with how much deference it is supposed to give in the review of claim construction in view of the Supreme Court’s ruling in Teva Pharm. USA, Inc. v. Sandoz, Inc., 135 S.Ct. 831 (2015).