PTAB Trial Statistics as of November 27, 2014

This page gives Patent Trial and Appeal Board trial figures as of November 27, 2014, which falls in fiscal year 2015 (October 1, 2014 to September 30, 2015). The cumulative figures run from September 16, 2012, when AIA trials began. The full year is covered on the FY2015 statistics page.

Cumulative Figures as of November 27, 2014

Events from September 16, 2012 to November 27, 2014, by trial type:

Measure	IPR	PGR	CBM	DER	Total
Petitions filed	2,122	3	262	5	2,392
Institution decisions: instituted	913	0	116	0	1,029
Institution decisions: denied	409	1	59	3	472
Institution rate (by petition)	69.1%	0.0%	66.3%	0.0%	68.6%
Final written decisions	195	0	20	0	215

Terminations without a final written decision	Count
Settlements	178
Adverse judgment	0
Dismissed	0
Other terminations	8

Fiscal Year 2015 to Date

Events from October 1, 2014 to November 27, 2014:

Measure	IPR	PGR	CBM	DER	Total
Petitions filed	281	1	29	0	311
Institution decisions: instituted	174	0	9	0	183
Institution decisions: denied	56	1	3	0	60
Institution rate (by petition)	75.7%	0.0%	75.0%	—	75.3%
Final written decisions	45	0	3	0	48

Terminations without a final written decision	Count
Settlements	34
Adverse judgment	0
Dismissed	0
Other terminations	0

Change Since November 13, 2014

Between the previous dated page (November 13, 2014) and November 27, 2014, 53 petitions were filed, 34 trials were instituted, 18 petitions were denied institution and 14 final written decisions issued. The cumulative institution rate moved from 68.7% to 68.6%.

Trial Types Covered

2,122 of the 2,392 petitions (88.7%) were for inter partes review, which challenges patent claims on prior-art grounds under 35 U.S.C. chapter 31. The remainder were for covered business method review (262), post-grant review under chapter 32 (3) and derivation proceedings (5). Institution standards differ by proceeding; see the threshold standards.

How These Figures Were Compiled

The figures are counted from USPTO Open Data Portal records retrieved on October 31, 2026, keeping only events dated on or before November 27, 2014: a petition by its filing date, an institution decision by its decision date, and a final written decision or termination by its date. They are a reconstruction from the current records, not the USPTO’s report of that date, and may differ from statistics the USPTO published at the time. Final written decision outcomes are not reported because the records state them for too few decisions. The methodology gives the counting rules in full.

Related Statistics

• PTAB statistics for fiscal year 2015
• PTAB trial statistics as of November 13, 2014 (previous date)
• PTAB trial statistics as of December 4, 2014 (next date)
• PTAB statistics by fiscal year, with charts
• Reading PTAB trial outcomes
• USPTO PTAB statistics (official reports)