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日期:2024-09-04
The only known copy of this patent was destroyed in the US patent office fire of 1836. Patents issued to women have been cited in support of the inherent inventiveness and industry of women....
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日期:2024-09-08
The official website of the European Patent Office (EPO). Find information on applying and searching for patents, legal issues on patents, patent grants, rules and regulations about ......
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日期:2024-09-07
Home page of the United States Patent and Trademark Office's main web site....
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日期:2024-09-03
The US Patent and Trademark Office (
PTO) offers World-Wide Web (Web) ......
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日期:2024-09-03
由於這個網站的 robots.txt, 因此無法提供此結果的說明 – 瞭解詳情。...
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日期:2024-09-05
2013年9月30日 - See this important information about searching for patents: ... How to Conduct a Preliminary U.S. Patent Search: A Step by Step Strategy - Web ......
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日期:2024-09-08
2014年2月13日 - Information about the U.S. patenting process, including agency organization chart, rules and regulations, FAQs, and online applications....
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日期:2024-09-09
The United States Patent and Trademark Office (PTO or USPTO) is an agency in the U.S. Department of Commerce that issues patents to inventors and businesses for their inventions, and trademark registration for product ......