Renewed Efficiency in Administrative Patent Revocation

35 Pages Posted: 22 Sep 2018 Last revised: 25 Aug 2019

See all articles by Saurabh Vishnubhakat

Saurabh Vishnubhakat

Yeshiva University - Benjamin N. Cardozo School of Law; Duke University School of Law

Date Written: August 23, 2018


Administrative patent revocation in the U.S. is poised to enter a new period of efficiency, though ironically it will be an efficiency that the America Invents Act originally put in place. The Court’s recent approval of the constitutionality of Patent Trial and Appeal Board ("PTAB") proceedings was blunted by the Court’s accompanying rejection of partial institution. This Patent Office practice of accepting and denying validity review petitions piecemeal had been a key part of the agency’s procedural structure from the start. As a result, the Court’s decision in SAS Institute v. Iancu to require a binary choice — either fully accepting a PTAB petition or fully denying it — is already being criticized for sacrificing efficiency on the altar of wooden statutory interpretation, including two dissents from the decision itself. Starting from the premise that SAS Institute was rightly decided, however, this paper makes two contributions. The theoretical contribution is to contrast PTAB estoppel with ordinary principles of res judicata and collateral estoppel. This important context is lacking in the literature, and the profound effect of SAS Institute on PTAB estoppel makes this evaluation especially timely. The empirical contribution is to marshal new data and guide the difficult structural choices that the agency must now make in order to comply with SAS Institute.

Notably, though Justice Ginsburg’s dissent suggested that the agency could comply with the Court’s decision through a few empty gestures, her mock proposal is actually a sound plan of action. By reinvigorating Congress’s view of efficiency, one that is more systemic than merely minimizing short-term agency workload, the Court has enabled the Patent Office to resolve open questions about the maturing system for resolving patent validity through administrative, rather than judicial, process.

Keywords: patent, administrative, agency, inter partes, post grant, America Invents Act, SAS Institute, USPTO, PTAB, AIA, CBM, IPR

JEL Classification: D23, D73, K23, K41, O31, O34, O38

Suggested Citation

Vishnubhakat, Saurabh, Renewed Efficiency in Administrative Patent Revocation (August 23, 2018). Iowa Law Review, Vol. 104, 2019, Texas A&M University School of Law Legal Studies Research Paper No. 18-43, Available at SSRN:

Saurabh Vishnubhakat (Contact Author)

Yeshiva University - Benjamin N. Cardozo School of Law ( email )

55 Fifth Ave.
New York, NY 10003
United States


Duke University School of Law

Durham, NC

Do you have negative results from your research you’d like to share?

Paper statistics

Abstract Views
PlumX Metrics