USPTO Search
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- 1Patents - USPTO
Patent basics · Patent process step-by-step · Search patents ; Apply for a patent · Get started f...
- 2Search trademark database - USPTO
Search for trademark applications and registrations with Trademark Electronic Search System (TESS)
- 3How to conduct a preliminary U.S. patent search - USPTO
- 4USPTO
- 5Search for patents - USPTO
Inventors are encouraged to search the USPTO's patent database to see if a patent has already bee...