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Intellectual Property

Intellectual Property Resources
Internet Resources & Contact Information


Online trademark searches,

registration, and renewal services.




Canadian Intellectual Property Office


Canadian Patent Database

Patent search.


European Patent Organization (EPO)

Intellectual property throughout EU & Eurasia.


European Office for Harmonization of the Internal Market

Trademarks & design registration.


European Union Intellectual Property Office


National Institute for Industrial Property



Patent and Trademark Office



Hong Kong Special Administrative Region Government


Intellectual Property (IP) Australia

Patents, trademarks, & designs.


Intellectual Property Department

Hong Kong Government

Patents, trademarks, & designs.


• Intellectual Property Rights Helpdesk






Patent and Trademark Office Phone

Numbers in the United States


U.S. Patent Trademark Office

Contact Center (UCC)

For general information, mailing addresses, Internet addresses, accounts, how to use the online fee payment management system and contact information for other USPTO services. General Support is available Monday through Friday from 8:30 a.m. to 8 p.m. ET (except federal holidays).

Toll-Free: 800-786-9199

Local: 571-272-1000

TTY: 800-877-8339


Assignments Recordation Branch (ARB)

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

Fax: 571-273-0140


Patent and Trademark Copy Fulfillment Branch

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

Toll-Free: 800-972-6382

Local: 571-272-3150

Fax: 571-273-3250


Office of the Chief Communications Officer

The Office of the Chief Communications Officer manages the USPTO's public affairs function and coordinates a wide variety of internal and external communications.

Local: 571-272-8400

Fax: 571-273-0340


Receipts Accounting Division

The Receipts Accounting Division serves as the central coordinator for fees processed throughout the USPTO.

Local: 571-272-6500

Fax: 571-273-6500


Contact Patents

Provides contact information for all stages of the patent process including the Patent Electronic Business Center, the Inventors Assistance Center, Office of Patent Legal Administration, and other Patents assistance services.


Inventors Assistance Center

The Inventors Assistance Center provides patent information and services to the public. It is staffed by experienced patent professionals who can answer general questions concerning patent examining policy and procedure.

Toll-Free: 800-786-9199

Local: 571-272-1000

TTY: 800-877-8339


Application Assistance Unit

The staff in the Application Assistance Unit (AAU) is trained to assist with a broad range of questions and issues pertaining to pre-examination processing of patent applications by the Office of Patent Application Processing (OPAP) and the post-examination processing of patent applications by the Office of Data Management (ODM). Assistance is available Monday through Friday (except federal holidays) from 8:30 a.m. to 5 p.m. ET. 888-786-0101 (toll-free) 571-272-4000 (local)

Toll-Free: 888-786-0101

Local: 571-272-4000



Patent Cooperation Treaty (PCT) Helpdesk

Provides information and assistance on the PCT process, (571) 272-4300 from 8:30 am to 5:00 pm (ET), Monday through Friday.

Local: 571-272-4300


Patent Trial and Appeal Board

The Patent Trial and Appeal Board (PTAB) is created by statute, and includes statutory members and Administrative Patent Judges. The PTAB is charged with rendering decisions on: appeals from adverse examiner decisions, post-issuance challenges to patents, and interferences.

Local: 571-272-9797

Fax: 571-273-0053


Patent Electronic Business Center

The Patent Electronic Business Center (EBC) assists customers with filing their electronic patent application submissions via the Electronic Filing System (EFS-Web) and with the review of patent applications in Public and Private PAIR. The EBC offers support with electronic filing, eOffice Action, PatentIn and Checker, Customer Number Requests, PKI Digital Certificates, Customer Number Upload Spreadsheets, PDX requests, Fee Address Indication, PCT Associations, PatFT and AppFT Searches and Central Fax inquiries. Assistance is available Monday through Friday from 6:00 a.m. to Midnight ET (except federal holidays).

Toll-Free: 866-217-9197

Local: 571-272-4100



General Trademark Information

Email: TrademarkAssistanceCenter@uspto.govTelephone 1-800-786-9199 (select option #1). Telephone assistance is available Monday - Friday (except federal holidays) from 8:30 a.m. to 8:00 p.m. ET.

Walk-in assistance is available Monday through Friday (except federal holidays) from 8:30 a.m. to 5:00 p.m. ET.

Electronic Filing Help (Accessing or Using Electronic Forms)

Filing Applications electronically or using any TEAS electronic forms:

E-mail You will generally receive a response within two hours if you submit an e-mail Monday - Friday 8 a.m. - 8 p.m. ET. 





U.S. Patent and Trademark Office



Trilateral Cooperation

The European Patent Office (ePO),

the Japanese Patent Office (jPO), and

the U.S. Patent and Trademark Office

(USPTO) exchange information and

views regarding patent administration

in general, patent documentation and

classification, automation programs,

and patent examination practice.


United Kingdom Patent Office


U.S. Patent Copyright Office


United States Patent and

Trademark Office

Patent full-text database (PATFT)


WIPO PCT Gazette

World Intellectual Property Organization


Patent Cooperation Treaty

(PCT) Search Database.


World Intellectual Property

Organization (WIPO)

United Nations

(Geneva, Switzerland.)












USPTO Offices




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