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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.

Toll-Free: 800-786-9199 
Local: 571-272-1000 
TTY: 800-877-8339

General Filing

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

Toll-Free: 866-217-9197
Local: 571-272-4100
ebc@uspto.gov 

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.

Local: 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.

Local: 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.

Local: 571-272-4300

Before FilingBefore Filing

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

Local: 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

 Local: 571-272-3282

Before FilingBefore Filing

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Inventor’s Assistance Center -- Provides patent information and services to the public. The IAC is staffed by former Supervisory Patent Examiners and experienced Primary Examiners who answer general questions concerning patent examining policy and procedures.

Toll-Free: 800-786-9199
Local: 571-272-1000
​TTY800-877-8339

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

Toll-Free: 855-HELP-AIA
                855-435-7242

Local: 571-272-0300
HELPAIA@uspto.gov 

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

Toll-Free: 888-786-0101
Local: 571-272-4200
          
571-272-4000
HelpAAU@uspto.gov

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

Local: 571-272-3350
EPAS@uspto.gov 

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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

Toll-Free: 855-559-8589
Local: 571-272-5555 
Hours: M-F 8:30-5:00
Contact Form: Ombudsman 

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

Toll-Free: 800-972-6382
Local: 571-272-3150
Fax: 571-273-3250
dsd@uspto.gov 

Administration of Patent/Trademark

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

Local: 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

Fax: 571-273-8300

Administration of Patent/Trademark