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日期:2025-04-22
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:2025-04-19
Home page of the United States Patent and Trademark Office's main web site....
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日期:2025-04-21
The US Patent and Trademark Office (
PTO) offers World-Wide Web (Web) ......
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日期:2025-04-22
Global Patent Search Network (GPSN) Global Patent Search Network (GPSN) enables users to search the full text of multiple international patent collections. The initial collection available will be Chinese patent documentation from the State Intellectual P...
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日期:2025-04-19
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:2025-04-21
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:2025-04-25
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:2025-04-18
2014年2月13日 - Information about the U.S. patenting process, including agency organization chart, rules and regulations, FAQs, and online applications....