Last week, in Golden v. United States, the Federal Circuit again rejected the argument that the cancellation of a patent in an America Invents Act (AIA) post-grant proceeding violates the Fifth Amendment’s Takings Clause. Just as it did in other cases raising Patent Trial and Appeal Board (PTAB)-related Takings Clause issues, the appellate court in Golden relied on its July 2019 decision in Celgene Corp. v. Peter (931 F.3d 1342 [Fed. Cir. 2019]), rejecting the Takings Clause argument on the merits. See Collabo Innovations, Inc. v. Sony Corp., 778 F. App’x 954, 961 (Fed. Cir. 2019); Enzo Life Sci., Inc. v. Becton Dickinson & Co., 780 F. App’x 903, 911 (Fed. Cir. 2019). But unlike these previous decisions, the Federal Circuit’s analysis in Golden also included discussion and resolution of an important threshold jurisdictional question—an issue that, as we argued in a November 2019 IPWatchdog piece, should have precluded the Federal Circuit from reaching the merits of the Takings Clause argument in Celgene in the first place.

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