IPLA – International Patent Legal Administration
OPAP – Office of Patent Application Processing
OPET – Office of Petitions
TC – Technology Center
Generally available
| Petition type | Average days pending of decided petitions | Median days pending of decided petitions | Grant rate percentage | Deciding office | ePetition option |
|---|---|---|---|---|---|
| 311 - For correction of inventorship for applications when filed with another petition handled by OPET | NONE | NONE | NONE | OPET | |
| 313 - For filing application without one or more inventors | 89 | 84 | 53%* | OPET | |
| 519 - Rule 1.182 - Inventor name change, order of inventor, atty/assignee name change | 105 | 42 | 80% | OPET | |
| 634 - To correct inventorship in a patent not in interference (37 CFR 1.324, MPEP 1481.02) | NONE | NONE | NONE | TC | |
| 635 – To change an inventorship in an application (37 CFR 1.48, MPEP 602.01(c) | 48 | 48 | 100% | OPAP | |
| 636 - To change inventorship in a patent (37 CFR 1.324, MPEP 1481.02) | NONE | NONE | NONE | TC |
Prior to examination
| Petition type | Average days pending of decided petitions | Median days pending of decided petitions | Grant rate percentage | Deciding Office | ePetition Option |
|---|---|---|---|---|---|
| 277 - To decide matters regarding inventorship in national stage - 37 CFR 1.497(d) | NONE | NONE | NONE | IPLA | |
| Please scroll to the top of this page to view other petition types that are available during this stage. | |||||
*Infrequently filed petition
Displayed are the 12-month rolling average and median values. When the median value is significantly different from the average value, the median value will better represent when a particular category of a petition has been decided. This is because a small number of outliers can disproportionately impact the average value. The values exclude ePetitions.
The data is current as of October 3, 2025, and is updated quarterly.