In the 50 Final Written Decisions issued by the Patent Trial and Appeal Board in January, the Board cancelled 569 (76.38%) of the instituted claims and declined to cancel 159 (21.34%) of the instituted claims. Patent owners conceded 17 (2.28%) of the instituted claims through motions to amend or disclaimer.

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On a per-case basis, no instituted or substitute claims survived in 37 (74.00%) of the decisions, all instituted claims survived in 9 (18.00%) of the decisions, and a mixed outcome occurred in 4 (8.00%) 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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More detailed cumulative statistics on the Board’s IPR and CBM decisions, updated through February 1, 2016, are available here on the AIA Blog.

Lists of the top 10 PTAB judges by panel appearances and authored opinions are available here.

Numbers of final written decisions by technology center are available here.