Instituted Patent Claims Survive in About One Third of All IPR Trials

Authored by Michelle Carniaux and Michael E. Sander

It has been a little more than one year since the Patent Trial and Appeal Board (“PTAB”) issued their first final written decision in an inter partes review and accordingly. Since then, by our calculation, the PTAB has issued 91 Final Written Decisions in IPR proceedings.1

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An Invitation Declined: Supporting a Petition for Inter Partes Review

Since the USPTO first issued its rules regarding inter partes review proceedings, prospective petitioners have grappled with the choices of which grounds of unpatentability to present to the Patent Trial and Appeal Board. Given the estoppel provisions of 35 U.S.C. § 315, which may prevent a petitioner from later raising any ground of unpatentability that either was raised or could have been raised in the IPR proceeding, petitioners taking the IPR plunge are loathe to hold back any grounds of unpatentability that might resonate with the Board, or later to the Federal Circuit on appeal.

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