December 02, 2016
Authored and Edited by David C. Seastrunk; Elliot C. Cook; Daniel F. Klodowski; Aaron L. Parker
In the 49 Final Written Decisions issued by the Patent Trial and Appeal Board in October, the Board cancelled 660 (70.36%) of the instituted claims and declined to cancel 278 (29.64%) of the instituted claims. Patent owners did not concede any instituted claims through motions to amend or disclaimer.
On a per-case basis, no instituted or substitute claims survived in 31 (63.27%) of the decisions, all instituted claims survived in 13 (26.53%) of the decisions, and a mixed outcome occurred in 5 (10.20%) of the 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.

The overall cumulative instituted claim survival rate, broken down by technology center, is as follows:

More detailed cumulative statistics on the Board’s IPR and CBM decisions, updated through November 1, 2016, are available here on the AIA Blog.
Statistics regarding the outcome of appeals to the Federal Circuit are available here.
Numbers of final written decisions by technology center and instituted claim survival rates by technology center are available here.
Various other PTAB metrics collected and generated by Finnegan are reserved for the use of Finnegan and its clients.
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At the PTAB Blog
Discretion All the Way Down: USPTO Uses a Discretionary IPR Denial to Justify a
§ 325(d) EPR Denial
May 28, 2026
At the PTAB Blog
IPR and PGR Statistics for Final Written Decisions Issued in March and April 2026
May 26, 2026
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