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
502 - Revive an application abandoned by OPAP or the TC- unintentionally delayed reply, no additional information required (37 CFR 1.137(a))	51	35	68%	OPET
562 - Revive an application abandoned by OPAP or the TC - unintentionally delayed reply, additional information required (37 CFR 1.137(a)	70	59	18%	OPET
510 - Revive an application abandoned by ODM - unintentionally delayed reply, no additional information required (37 CFR 1.137(a))	45	34	72%	OPET
560 - Revive an application abandoned by ODM - unintentionally delay reply, additional information required (37 CFR 1.137(a)	70	44.5	27%*	OPET
525 - To withdraw a holding of abandonment (37 CFR 1.181) - Failure to received an Office action or Reply timely filed	66	56	64%	OPET
536 - Revive an application under 37 CFR 1.137(f), no additional information required	43	28	87%*	OPET
566 -Revive an application under (37 CFR 1.137(f) additional information required	96	48	50%*
561 - Revive an application for continuity purposes only, no additional information required (37 CFR 1.137(a))	54	31	63%*	OPET
571 - Revive an application for continuity purposes only, no additional information required (37 CFR 1.137(a))	40	27.5	42%*	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)	278	278	0%*	ODM

Prior to examination

Petition type	Average days pending of decided petitions	Median days pending of decided petitions	Grant rate percentage	Deciding office
220 - To excuse a delay in a Hague application	None	None	None	IPLA
272 - To revive an abandoned international application - unintentional delay, no additional information required (37 CFR 1.137(a))	2396	30	89%	IPLA
292 - To revive an abandoned international application - unintentional delay, additional information required (37 CFR 1.137(a))	1171	49	37%*
273 - To withdraw a holding of abandonment in an internation application (37 CFR 1.181)	72	48	47%*	IPLA
529 - To withdraw a holding of abandonment in pre-exam status (37 CFR 1.181) - Failure to receive an Office or Reply timely filed	121	77	26%	OPET
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 January 5, 2026 and is updated quarterly.