United States Patent and Trademark Office

An Agency of the Department of Commerce

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Contact Information for the
Patent Electronic Business Center (EBC)

Weekday Operation:
Monday – Friday: 6 AM - Midnight (Eastern Time)

Telephone:    1-866-217-9197 (toll-free)
                                571-272-4100 (local)

E-mail:            ebc@uspto.gov

Fax:                571-273-0177

Postal:           Mail Stop EBC,
                       Commissioner for Patents,
                        PO Box 1450,
                       Alexandria, VA 22313-1450.

US Department of Commerce
USA.gov