In CELGENE CORPORATION v. PETER, the Federal Circuit recently affirmed the PTAB’s decisions finding appealed claims obvious. However, more importantly, the Federal Circuit also held that the retroactive application of IPR proceedings to pre-AIA patents is not an unconstitutional taking under the Fifth Amendment.

Regarding the constitutional issue of whether the retroactive application of IPRs to pre-AIA patents is an unconstitutional taking, the Federal Circuit noted that The Supreme Court left open this challenge with
the following passage near the end of its decision in Oil States Energy Servs., LLC v. Greene’s Energy Grp., LLC, 138 S. Ct. 1365, 1379 (2018) as follows:
Continue Reading Federal Circuit Holds IPR Proceedings on Pre-AIA Patents is Not an Unconstitutional Taking Under the Fifth Amendment

Prior to the Leahy-Smith America Invents Act (“AIA”), the patent statute (35 U.S.C. § 102(b)) prohibited patenting an invention that was “on sale in this country, more than one year prior to the date of the application for patent in the United States.”  This limitation on patentability is often referred to as the “on-sale” bar

Currently, the standard for claim construction is different in AIA reviews before the United States Patent and Trademark Office’s (“USPTO”) Patent Trial and Appeal Board (“PTAB) than in proceedings in federal district courts and the International Trade Commission (“ITC”).  The USPTO construes claims to have their broadest reasonable interpretation (“BRI”) while district courts and the

On September 26, 2016, the U.S. Court of Appeals for the Federal Circuit declined to review in a unanimous en banc decision a panel Federal Circuit decision affirming that the Patent Trial and Appeal Board (the “Board”) at the Patent and Trademark Office (“USPTO”) could hear new evidence during a trial, evidence that was not