Trends & Analysis for Post-Grant Proceedings for Patent Litigation

In 2025, institution rates dipped sharply mid year—falling to roughly 51% in Q2 2025 from about 67% in Q1 and 75% in the same quarter of 2024—intensifying the premium on front end petition quality and forum coordination. And as discretionary denials increased, parties adjusted their mix of options, with ex parte reexamination rising to more than a quarter of post grant filings while the share of inter partes review declined. Procedurally and substantively, the PTAB practice continues to evolve. 

ArentFox Schiff is built for this environment. Our team brings trial ready rigor to post grant practice. We help clients decide when to file, defend, settle, or stay the course based on institution likelihood, merits strength, forum dynamics, and business impact. As part of that effort, our team prepares the annual PTAB Report to keep our clients up to date on the latest PTAB trends and developments. 

Trends & Analysis of 2025 Post-Grant Proceedings

Download the report for key trends and updates shaping strategy for petitioners and patent owners here.

This year’s report distills the trends, statistics, and practice updates most likely to shape strategy for petitioners and patent owners in the year ahead.