Home page of the United States Patent and Trademark Office's main web site.

Sep 16, 2012 · For general assistance in completing the patent forms below or to request paper copies of the forms, contact the USPTO Contact Center Division at 1-800-786-9199 (1-800-PTO-9199) or …

Find out how to register and maintain a trademark in the U.S., apply for an international trademark, and about protecting your registered trademark.

Oct 17, 2025 · Find existing patents, published patent applications and other published patent documentation

Dec 20, 2025 · A powerful, flexible web-based patent search application that improves the overall patent searching process. It includes two user selected interfaces that provide enhanced access to prior art.

Jul 29, 2025 · Apply for a trademark through Trademark Center. Pay application-related fees and use the docketing feature to track the status of applications filed through Trademark Center.

The United States Patent and Trademark Office (USPTO) is the federal agency under the Department of Commerce and is responsible for granting U.S. patents and registering trademarks.

3 days ago · Check this webpage for the latest information on the operating status of USPTO's systems and planned maintenance activities.

If filing this completed form by mail, send to: Commissioner for Patents, P.O. Box 1450, Alexandria, VA 22313-1450. If you need assistance in completing the form, call 1-800-PTO-9199 (1-800-786-9199) …

The SB/08c form is designed for use with the PTO/SB/08a (for citing patent documents) and/or PTO/SB/08b (for citing non-patent documents), or equivalent. The new form also has instructions to …