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

Mar 23, 2026 · Find existing patents, published patent applications and other published patent documentation

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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.

Sep 16, 2012 · Due to the enactment of the America Invents Act in 2012, this page contains forms for patent applications filed on or after September 16, 2012.

May 14, 2025 · A search you complete before applying for a trademark registration to make sure your trademark is available to register for your particular goods or services, and to make sure that no …

Mar 26, 2026 · Find out how to register and maintain a trademark in the U.S., apply for an international trademark, and about protecting your registered trademark.

The Open Data Portal (ODP) is USPTO's data platform that empowers you to discover and easily extract USPTO data in one place for free.

Official Gazette The Official Gazette (OG) is the official journal of the USPTO, published weekly on Tuesday, that includes bibliographic information and a representative drawing for each patent …

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