PTAB statistics

PTAB Trial Statistics as of April 10, 2014

Updated

As of April 10, 2014, USPTO records show 1,195 AIA trial petitions filed since September 16, 2012 (1,035 IPR, 156 CBM, 0 PGR, 4 derivation). The Board had instituted trial on 488 petitions and denied 176 (73.5% instituted) and had issued 45 final written decisions. In fiscal year 2014 to that date, 607 petitions were filed.

Key Facts

As of
April 10, 2014
Fiscal year
FY2014
Petitions filed (cumulative)
1,195
Institution rate (cumulative)
73.5%
Petitions filed (FY2014 to date)
607
Data retrieved
October 31, 2026
On this page
  1. Cumulative Figures as of April 10, 2014
  2. Fiscal Year 2014 to Date
  3. Change Since March 13, 2014
  4. Trial Types Covered
  5. How These Figures Were Compiled
  6. Related Statistics

This page gives Patent Trial and Appeal Board trial figures as of April 10, 2014, which falls in fiscal year 2014 (October 1, 2013 to September 30, 2014). The cumulative figures run from September 16, 2012, when AIA trials began. The full year is covered on the FY2014 statistics page.

Cumulative Figures as of April 10, 2014

Events from September 16, 2012 to April 10, 2014, by trial type:

MeasureIPRPGRCBMDERTotal
Petitions filed1,035015641,195
Institution decisions: instituted4320560488
Institution decisions: denied1550210176
Institution rate (by petition)73.6%—72.7%—73.5%
Final written decisions34011045
Terminations without a final written decisionCount
Settlements74
Adverse judgment0
Dismissed0
Other terminations1

Fiscal Year 2014 to Date

Events from October 1, 2013 to April 10, 2014:

MeasureIPRPGRCBMDERTotal
Petitions filed50401003607
Institution decisions: instituted2550420297
Institution decisions: denied1080150123
Institution rate (by petition)70.2%—73.7%—70.7%
Final written decisions34010044
Terminations without a final written decisionCount
Settlements55
Adverse judgment0
Dismissed0
Other terminations0

Change Since March 13, 2014

Between the previous dated page (March 13, 2014) and April 10, 2014, 114 petitions were filed, 51 trials were instituted, 23 petitions were denied institution and 11 final written decisions issued. The cumulative institution rate moved from 74.1% to 73.5%.

Trial Types Covered

1,035 of the 1,195 petitions (86.6%) 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 (156), post-grant review under chapter 32 (0) and derivation proceedings (4). 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 April 10, 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.

Frequently Asked Questions

How many AIA trial petitions had been filed as of April 10, 2014?

USPTO records show 1,195 petitions filed from September 16, 2012 to April 10, 2014: 1,035 IPR, 156 CBM, 0 PGR and 4 derivation.

What was the PTAB institution rate as of April 10, 2014?

Cumulatively, 73.5% by petition: 488 instituted and 176 denied. In FY2014 to that date the rate was 70.7%.

Primary Sources

  1. USPTO Open Data Portal (PTAB trial proceedings and decisions data)
  2. USPTO Patent Trial and Appeal Board statistics
  3. 35 U.S.C. chapter 31 (inter partes review)
  4. 35 U.S.C. chapter 32 (post-grant review)
  5. 37 C.F.R. Part 42 (trial practice before the PTAB)

Educational information; not legal advice. Statutes, rules and USPTO practice change. Confirm against the primary sources and consult a registered patent practitioner before acting. Disclaimer.