
United States Patent and Trademark Office
Home page of the United States Patent and Trademark Office's main web site.
Search for patents | USPTO
Feb 3, 2026 · Find existing patents, published patent applications and other published patent documentation
Assignment Center
Access the Assignment Center to securely manage patent assignments and search for recorded assignment information.
Patent Public Search | USPTO
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.
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 related to a …
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) …
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USPTO locations | USPTO
6 days ago · Locate a USPTO office or patent and trademark resource center near you.
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-PTO-9199) or …
If you do not furnish the information requested on this form, the USPTO may not be able to process and/or examine your submission, which may result in termination of proceedings, abandonment of …