USPTO PAIR
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延伸文章資訊
- 1United States Patent and Trademark Office - USPTO
Search. This searchable database contains all recorded Patent Assignment information from August ...
- 2Search trademark database - USPTO
Search for trademark applications and registrations with Trademark Electronic Search System (TESS)
- 3Patents - USPTO
Patent basics · Patent process step-by-step · Search patents ; Apply for a patent · Get started f...
- 4Welcome to Patent Public Search - USPTO
- 5Prior Art Search - USPTO
