IPLA – International Patent Legal Administration
OPET – Office of Petitions
|Petition type||Average days pending of decided petitions||Median days pending of decided petitions||Grant rate percentage||Deciding office||ePetition option|
|283 - Unintentional delay priority claim (37 CFR 1.78(a)(3) & (a)(6) and 37 CFR 1.55 (c))||91||85.5||57%||IPLA|
|507 - Late filing of priority papers (37 CFR 1.55(f))||165||196||75%||OPET|
|535 - To accept unintentionally delayed priority/continuity claims (37 CFR 1.78 and 37 CFR 1.55)||73||55||47%||OPET|
540 - restoration (37 CFR 1.78 and 37 CFR 1.55)
*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 January 3, 2023, and is updated quarterly.