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  1. United States Patent and Trademark Office

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

  2. 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.

  3. Search for patents | USPTO

    Feb 3, 2026 · Find existing patents, published patent applications and other published patent documentation

  4. 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 …

  5. Assignment Center

    Access the Assignment Center to securely manage patent assignments and search for recorded assignment information.

  6. Trademark search

    An official website of the United States government Here’s how you know keyboard_arrow_down

  7. 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 …

  8. 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 …

  9. Trademark Center

    Navigate trademark services, forms, and resources efficiently through the USPTO Trademark Center.

  10. Contact us | USPTO

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