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

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.

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

Manage your intellectual property portfolio, access patent and trademark resources, and stay updated with the latest information on MyUSPTO.

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

Query building guidance To start a quick lookup, enter a single patent or publication number and select the Search button. To start a basic search, select a search field, enter your search term, and select …

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 …

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 …

For assistance with Patent e-Filing, or to suggest improvements to the online system, or report technical problems, please call the Patent Electronic Business Center at:

One can additionally file a change of correspondence address form PTO/AIA/122 or PTO/SB122 to an individual application to change the correspondence address to a customer number.