Abandonment related petitions

IPLA – International Patent Legal Administration
ODM – Office of Data Management
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
502 - To revive an abandoned application-unintentional delay (37 CFR 1.137(a))	51	35	69%	OPET
562 - To revive an abandoned application-unintentional delay (37 CFR 1.137(a) add'l info	72	62	20%	OPET
510 - To accept late payment of issue fee - unintentional late payment (37 CFR 1.137(a))	44	34	72%	OPET
560 - To revive an abandoned application-unintentional delay (37 CFR 1.137(a) add'l info	79	57	28%*	OPET
525 - To withdraw a holding of abandonment (37 CFR 1.181) - Failure to receive an office action  525 - To withdraw a holding of abandonment (37 CFR 1.181) - Reply timely	66	45	64%	OPET
536 - Under 37 CFR 1.137(f)	49	29	81%*	OPET
566 - To revive an abandoned application-unintentional delay (37 CFR 1.137(f) add'l info	85	71	40%*
561 - Revive abandoned application, continuity purposes only	54	34.5	67%*	OPET
571 - Revive abandoned application, continuity purposes only. add'l info	30	20	36%*	OPET
650 - For express abandonment under 37 CFR 1.138(c)	None	None	None	ODM
651 - For express abandonment under Rule 37 CFR 1.138(d)	None	None	None	ODM

Prior to examination

*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.