Trademark Trial and Appeal Board

The Trademark Trial and Appeal Board (TTAB) hears and decides adversary proceedings involving:

  • oppositions to the registration of trademarks
  • petitions to cancel trademark registrations
  • proceedings involving applications for concurrent use registrations of trademarks.

The Board also decides appeals taken from the trademark examining attorneys' refusals to allow registration of trademarks.

TTAB Assistance Center

The TTAB Assistance Center is available for telephone and email inquiries Monday-Friday 8:30 a.m.to 5 p.m. ET (except federal holidays). 

Hours of Operation: Monday-Friday 8:30 a.m.-5:00 p.m. ET
Phone: 571-272-8500

General information about TTAB proceedings: TTABInfo@uspto.gov 
Technical assistance with ESTTA filings: ESTTA@uspto.gov 

Official Mailing Address:

Trademark Trial and Appeal Board
U.S. Patent and Trademark Office
P.O. Box 1451
Alexandria, VA 22313-1451

For delivery via FedEx, UPS, etc.:
Trademark Trial and Appeal Board
U.S. Patent and Trademark Office
Madison East, Concourse Level Room C 55
600 Dulany Street
Alexandria, VA 22314