From November 2025 to January 2026, the PTAB cancelled 1,346 (76.56%) instituted claims across 118 IPR and PGR Final Written Decisions, including decisions issued following remand from the Federal Circuit. After review, 392 (22.30%) instituted claims survived.
For comparison, the cumulative average cancellation rate of instituted claims in IPR, CBM, and PGR Final Written Decisions is about 74%.
On a per-case basis, no instituted or substitute claims survived in 70 (59.32%) decisions, all instituted claims survived in 21 (17.80%) decisions, and a mixed outcome occurred in 27 (22.88%) decisions. A mixed outcome occurs where at least one instituted or substitute claim remains patentable, and at least one is cancelled, in a Final Written Decision.
Through January 31, 2026, the PTAB has cumulatively granted 693 (15.62%) proposed substitute claims in motions to amend while denying 3,745 (84.38%) proposed substitute claims in IPRs.
The overall cumulative instituted claim survival rate in IPRs, CBMs, and PGRs through January 31, 2026, broken down by technology center, is as follows:
The cumulative number of Final Written Decisions through January 31, 2026, separated by technology center, is as follows:
Additional cumulative statistics on the Board's IPR, CBM, and PGR decisions, updated through January 31, 2026, are available here on the At the PTAB blog.
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