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

  2. United States Patent and Trademark Office

  3. Patent Public Search | USPTO

  4. Patent essentials | USPTO

  5. Search for patents | USPTO - United States Patent and Trademark …

  6. Patent Basics | USPTO

  7. Applying for Patents | USPTO - United States Patent and …

  8. Patent Center | USPTO

  9. Patent Center

  10. Patent Public Search Basic (PPUBS Basic) - United States Patent …