U.S. Patent and Trademark Office
The U.S. Patent and Trademark Office is the agency responsible for granting U.S. patents and registering trademarks.
Phone number
1-571-272-1000
Toll-free number
1-800-786-9199 (8:30 am - 8:00 pm, ET)
TTY
1-571-272-9950
Main address
600 Dulany St.
Alexandria, VA 22314
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