PTAB statistics

PTAB Trial Statistics as of March 13, 2014

Updated

As of March 13, 2014, USPTO records show 1,081 AIA trial petitions filed since September 16, 2012 (945 IPR, 132 CBM, 0 PGR, 4 derivation). The Board had instituted trial on 437 petitions and denied 153 (74.1% instituted) and had issued 34 final written decisions. In fiscal year 2014 to that date, 493 petitions were filed.

Key Facts

As of
March 13, 2014
Fiscal year
FY2014
Petitions filed (cumulative)
1,081
Institution rate (cumulative)
74.1%
Petitions filed (FY2014 to date)
493
Data retrieved
October 31, 2026
On this page
  1. Cumulative Figures as of March 13, 2014
  2. Fiscal Year 2014 to Date
  3. Change Since January 23, 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 March 13, 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 March 13, 2014

Events from September 16, 2012 to March 13, 2014, by trial type:

MeasureIPRPGRCBMDERTotal
Petitions filed945013241,081
Institution decisions: instituted3930440437
Institution decisions: denied1360170153
Institution rate (by petition)74.3%—72.1%—74.1%
Final written decisions24010034
Terminations without a final written decisionCount
Settlements57
Adverse judgment0
Dismissed0
Other terminations1

Fiscal Year 2014 to Date

Events from October 1, 2013 to March 13, 2014:

MeasureIPRPGRCBMDERTotal
Petitions filed4140763493
Institution decisions: instituted2160300246
Institution decisions: denied890110100
Institution rate (by petition)70.8%—73.2%—71.1%
Final written decisions2409033
Terminations without a final written decisionCount
Settlements38
Adverse judgment0
Dismissed0
Other terminations0

Change Since January 23, 2014

Between the previous dated page (January 23, 2014) and March 13, 2014, 132 petitions were filed, 118 trials were instituted, 33 petitions were denied institution and 26 final written decisions issued. The cumulative institution rate moved from 72.7% to 74.1%.

Trial Types Covered

945 of the 1,081 petitions (87.4%) 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 (132), 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 March 13, 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 March 13, 2014?

USPTO records show 1,081 petitions filed from September 16, 2012 to March 13, 2014: 945 IPR, 132 CBM, 0 PGR and 4 derivation.

What was the PTAB institution rate as of March 13, 2014?

Cumulatively, 74.1% by petition: 437 instituted and 153 denied. In FY2014 to that date the rate was 71.1%.

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.