United States Patent and Trademark Office
Home page of the United States Patent and Trademark Office's main web site.
Patent Public Search Basic | USPTO
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, …
Patent Public Search | USPTO
2 days ago · A powerful, flexible web-based patent search application that improves the overall patent searching process. It includes two user selected interfaces that provide enhanced …
Search for patents | USPTO
Oct 17, 2025 · Find existing patents, published patent applications and other published patent documentation
Trademark search
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Contact us | USPTO
Dec 8, 2025 · Phone numbers, email addresses, and other contact information for USPTO offices and business centers
PTO‐2042a (01‐2019) ... Privacy Act Statement The Privacy Act of 1974 (P.L. 93-579) requires that you be given certain information in connection with your submission of the attached form …
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 …
Forms for patent applications | USPTO
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 …
Bibliographic Data - Application - Patent Center - USPTO
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: