Official websites use .gov A .gov website belongs to an official government organization in the United States.

The site is secure. A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Internal system status and availability

Check this webpage for the latest information on the operating status of USPTO's internal systems and planned maintenance activities.

Current status of USPTO systems

Monday, May 18, 2026 8:33 AM ET

Monitoring Resolved

OC and DAV Issue Resolved

The issues with latency and not being able to load (OC) and (DAV) have been resolved. During this time, users should work in DAV and OC-PREX separately. Please clear cache when returning to DAV while the OC team works to deploy a fix

Please see the link for instructions on clearing cache: Enterprise - Microsoft Edge – Clear Browser Cache | SMP

Last updated: Monday, May 18, 2026 at 5:42 PM ET

View past unplanned events