Takings Challenge to IPR Fails

Since the Supreme Court’s decision in Cuozzo Speed, there has been speculation that there may be an opportunity to attack AIA trials on different constitutional grounds. Most recently, it was argued that cancellation of an improvidently granted patent constituted a 5th Amendment “taking.”

In Celgene Corporation v. Peter, perhaps not surprisingly, the Federal Circuit held that “IPRs do not differ significantly enough from preexisting PTO mechanisms for reevaluating the validity of issued patents to constitute a Fifth Amendment taking.”

While IPRs do not differ significantly from reexamination in scope, CBM proceedings do. 
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