
It is puzzling, if not troubling, that the Federal Circuit recently invited (link) the Patent Office to submit a brief expressing its views on the scope of the petitioner estoppel under 35 U.S.C. § 315(e)(2), a veritable Pandora’s Box. It is puzzling because only the judiciary can apply this estoppel provision, the Patent Office cannot. It is troubling not necessarily because the Patent Office unsurprisingly accepted the court’s invitation, but because it then answered in the affirmative a broad question the court did not pose: “whether section 315(e)(2) bars a successful inter partes review petitioner from making the same arguments in district court that it prevailed on in the inter partes review.” By inviting the court to conclude as much, the Patent Office has identified a statutory gaffe that may require parties to reevaluate the risks and rewards in pursuing inter partes review in parallel with district court actions.
Continue Reading Federal Circuit Invites Patent Office to Open Pandora’s Box





Inter partes review not only provides a faster and cheaper way to challenge patent validity, but also expands the Patent Office’s ability to develop law on esoteric issues relating to prior art. The Federal Circuit’s decision 
On October 29, 2018, the Patent and Trademark Office published a request for comments on a proposal to establish a new procedure by which patent owners may seek to amend their claims during inter partes review. Comments are due on or before December 14, 2018. The PTO proposes a pilot program implementing the new amendment process to begin shortly after the deadline for comments.