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

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

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 …

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 …

Find out how to apply for and maintain a patent in the U.S., and learn about helpful resources.

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 …

An application data sheet (ADS) in accordance with 37 CFR 1.76(c) identifying the change and a Statement Under 37 CFR 3.73(c) (Form PTO/AIA/96 or equivalent) are included.

Dec 8, 2025 · Phone numbers, email addresses, and other contact information for USPTO offices and business centers

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

Feb 2, 2013 · If the applicant is two or more joint inventors, then the ADS must be signed by all joint inventors who are the applicant, or one or more joint-inventor applicants who have been …