United States Patent
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關於「United States Patent」標籤,搜尋引擎有相關的訊息討論:
延伸文章資訊
- 1Prior Art Search - USPTO
- 2Welcome to Patent Public Search - USPTO
- 3Search trademark database - USPTO
Search for trademark applications and registrations with Trademark Electronic Search System (TESS)
- 4Search for Application - USPTO
- 5Search for patents - USPTO
Inventors are encouraged to search the USPTO's patent database to see if a patent has already bee...