March 25, 2016
Authored and Edited by David C. Seastrunk; Elliot C. Cook; Daniel F. Klodowski; Aaron L. Parker
In the 35 Final Written Decisions issued by the Patent Trial and Appeal Board in February, the Board cancelled 491 (79.45%) of the instituted claims and declined to cancel 112 (18.12%) of the instituted claims. Patent owners conceded 15 (2.43%) of the instituted claims through motions to amend or disclaimer.

On a per-case basis, no instituted or substitute claims survived in 29 (82.86%) of the decisions, all instituted claims survived in 2 (5.71%) of the decisions, and a mixed outcome occurred in 4 (11.43%) 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.

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At the PTAB Blog
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§ 325(d) EPR Denial
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IPR and PGR Statistics for Final Written Decisions Issued in March and April 2026
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