On July 30, the Federal Circuit issued a decision in Celgene Corporation v. Peter (Nos. 2018-1167, -1168, -1169, and -1171), where the patent owner argued that the PTAB’s authority to cancel claims through IPR amounted to an unconstitutional taking as applied to pre-AIA patents. Numerous patent owners have raised similar challenges since the Supreme Court expressly reserved judgment on the issue in Oil States Energy Services, LLC v. Greene’s Energy Group, LLC, 138 S. Ct. 1365, 1379 (2018). The Federal Circuit’s decision puts that issue to rest (at least for now) and confirms that all issued patents remain subject to IPR.

Background

The Celgene appeal arose
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On June 10, 2019, the Supreme Court held that a federal agency is not a “person” who can file a petition for review of a patent under one of the three new proceedings created by the America Invents Act (“AIA”).  Return Mail, Inc. v. United States Postal Service, 587 U.S. ____, 2019 WL 2412904, at *3 (U.S. June 10, 2019) (“Return Mail“).  Specifically, the Court held that federal agencies cannot file a petition for inter partes, post-grant, or covered business method review with the Patent Trial and Appeal Board (“PTAB”) (collectively, “PTAB proceedings”).  Id.
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We previously published a post on the Federal Circuit’s decision in Helsinn Healthcare S.A. v. Teva Pharmaceuticals USA, Inc., and Helsinn’s subsequent petition for certiorari.

On January 22, 2019, the Supreme Court affirmed the Federal Circuit in a unanimous decision, holding that a commercial sale to a party who is required to keep the invention confidential can still constitute prior art
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