Resolved after 18 hours 50 minutes, affecting Electronic System for Trademark Trials and Appeals (ESTTA) and Trademark Trial and Appeal Board Center (TTABC) and 1 more, on May 26, 2026.
The USPTO is temporarily experiencing technical difficulties with the ESTTA, TTABVUE, and TTAB Center systems. Users may be unable to view up-to-date data for TTAB proceedings. We are working to restore service as quickly as possible. Additional information will be posted as soon as it’s available.
Affected components
Update timeline
- investigating May 26, 2026, 07:31 PM UTC
The USPTO is temporarily experiencing technical difficulties with the ESTTA, TTABVUE, and TTAB Center systems. Users may be unable to view up-to-date data for TTAB proceedings. We are working to restore service as quickly as possible. Additional information will be posted as soon as it’s available.
- resolved May 27, 2026, 02:20 PM UTC
Resolved
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