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Contact Information

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USPTO Customer Support Centers  -- For general patent information, Inventors Assistance Center, mailing addresses, Internet addresses, and contact information for other USPTO services.

1-800-786-9199 (toll free)

571-272-1000 

800-877-8339 (TTY)

General Filing

Electronic Business Center -- Customer support for electronic filing and PAIR access. Customer Numbers and digital (PKI) certificate issuance and maintenance

1-866-217-9197 (toll free)

571-272-4100

ebc@uspto.gov (email)

Before FilingBefore Filing

Scientific and Technical Information Center -- Extensive collections of foreign patents, Non-Patent literature and intellectual property law. Open to the public. Assistance for Sequence Listing Questions/Filing.

571-272-2520

571-272-3547 

Before FilingBefore Filing

Public Search Facility -- Provides public access to patent and trademark information in a variety of formats including on-line, microfilm, and print.  Trained staff are available to assist public users.

571-272-3275

Before FilingBefore Filing

Office of Patent Cooperation Treaty Legal Administration (PCT Help Desk) -- Assistance with applications filed under the Patent Cooperation Treaty.

571-272-4300

Before FilingBefore Filing

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Office of Patent Legal Administration -- Rule changes, PG Pubs, Patent Term Adjustment & Extension.

571-272-7701

Before FilingBefore Filing

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Office of Petitions -- Reviews and decides petitions, requests, and related inquiries, regarding the filing of patent applications

 571-272-3282

Before FilingBefore Filing

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Inventor’s Assistance Center -- For information on application continuation, patent infringement Power of Attorney forms, Office Action questions, Notice of Amendment, express abandonment, and patent claims/priority documents

1-800-786-9199 (toll free)

571-272-1000

800-877-8339 (TTY) 

Before FilingBefore Filing

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America Invents Act Contact Center -- For questions regarding the America Invents Act, including the new legal provisions and rules

855-HELP-AIA (855-435-7242) (toll-free) 

571-272-0300

HELPAIA@uspto.gov (email) 

Before FilingBefore Filing

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Application Assistance Unit– (Status inquiries regarding newly filed and allowed patent applications; and  questions about Pre-Grant Publication or 18-month Publication

1-888-786-0101 (toll free)

571-272-4200 or 571-272-4000

Before FilingBefore Filing

Before FilingPre Examination

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Assignments Recordation Branch - For help with following a new assignment or obtaining information on a pending assignment, questions on assignments, liens on patents, filing assignments, recordation forms, and trademark assignments

571-272-3350

EPAS@uspto.gov (email)

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Ombudsman Program-- When there is a breakdown in the normal application process, including before and after prosecution, the Patents Ombudsman Program can assist in getting the application back on track

571-272-5555 

855-559-8589 (toll free)

Hours: M-F 8:30-5:00

or the contact form found on the Ombudsman page 

Before FilingBefore Filing

Before FilingPre Examination

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Patent and Trademark Copy Fulfillment Branch - Copies of official U.S. Patent and U.S. Trademark documents are available for sale

800-972-6382 (toll-free)

571-272-3150

571-273-3250 (fax)

dsd@uspto.gov (email)

Administration of Patent/Trademark

Receipts Accounting Division (RAD) - For information on fee payments, including maintenance fees, deposit accounts, and refunds

571-272-6500 

Administration of Patent/Trademark

Central Fax  -- For transmitting by facsimile patent related correspondence. Please see 37 CFR 1.6(d) for an identification of correspondence that the USPTO does not permit to be transmitted

571-273-8300 (fax)

Administration of Patent/Trademark