PTAB statistics

PTAB Trial Statistics as of May 22, 2014

Updated

As of May 22, 2014, USPTO records show 1,391 AIA trial petitions filed since September 16, 2012 (1,209 IPR, 177 CBM, 0 PGR, 5 derivation). The Board had instituted trial on 579 petitions and denied 217 (72.7% instituted) and had issued 82 final written decisions. In fiscal year 2014 to that date, 803 petitions were filed.

Key Facts

As of
May 22, 2014
Fiscal year
FY2014
Petitions filed (cumulative)
1,391
Institution rate (cumulative)
72.7%
Petitions filed (FY2014 to date)
803
Data retrieved
October 31, 2026
On this page
  1. Cumulative Figures as of May 22, 2014
  2. Fiscal Year 2014 to Date
  3. Change Since May 8, 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 May 22, 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 May 22, 2014

Events from September 16, 2012 to May 22, 2014, by trial type:

MeasureIPRPGRCBMDERTotal
Petitions filed1,209017751,391
Institution decisions: instituted5110680579
Institution decisions: denied1870300217
Institution rate (by petition)73.2%—69.4%—72.7%
Final written decisions71011082
Terminations without a final written decisionCount
Settlements89
Adverse judgment0
Dismissed0
Other terminations2

Fiscal Year 2014 to Date

Events from October 1, 2013 to May 22, 2014:

MeasureIPRPGRCBMDERTotal
Petitions filed67801214803
Institution decisions: instituted3340540388
Institution decisions: denied1400240164
Institution rate (by petition)70.5%—69.2%—70.3%
Final written decisions71010081
Terminations without a final written decisionCount
Settlements70
Adverse judgment0
Dismissed0
Other terminations1

Change Since May 8, 2014

Between the previous dated page (May 8, 2014) and May 22, 2014, 74 petitions were filed, 39 trials were instituted, 11 petitions were denied institution and 15 final written decisions issued. The cumulative institution rate moved from 72.4% to 72.7%.

Trial Types Covered

1,209 of the 1,391 petitions (86.9%) 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 (177), post-grant review under chapter 32 (0) 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 May 22, 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 May 22, 2014?

USPTO records show 1,391 petitions filed from September 16, 2012 to May 22, 2014: 1,209 IPR, 177 CBM, 0 PGR and 5 derivation.

What was the PTAB institution rate as of May 22, 2014?

Cumulatively, 72.7% by petition: 579 instituted and 217 denied. In FY2014 to that date the rate was 70.3%.

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.