Resolved after 18 hours 50 minutes, affecting Electronic System for Trademark Trials and Appeals (ESTTA) and Trademark Trial and Appeal Board VUE (TTABVUE), 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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