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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. 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 …

  3. Search for patents | USPTO

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

  4. Patent Public Search | USPTO

    4 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 access to prior art.

  5. Trademarks | USPTO

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

  6. Patents | USPTO - United States Patent and Trademark Office

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

  7. Quick Reference Guide to the Information Disclosure Statement (IDS ...

    The SB/08c form is designed for use with the PTO/SB/08a (for citing patent documents) and/or PTO/SB/08b (for citing non-patent documents), or equivalent. The new form also has instructions to …

  8. About Us | USPTO

    The United States Patent and Trademark Office (USPTO) is the federal agency under the Department of Commerce and is responsible for granting U.S. patents and registering trademarks.

  9. Transferring ownership/ Assignments FAQs | USPTO

    Apr 30, 2024 · Must the USPTO cover sheet forms (PTO-1594 Trademarks or PTO-1595 Patents) be used when submitting recordation requests in paper?

  10. System status and availability | USPTO

    Oct 24, 2025 · Check this webpage for the latest information on the operating status of USPTO's systems and planned maintenance activities.