search:us free patent online相關網頁資料

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日期:2024-08-01
www.pat2pdf.org - A FREE patent search tool. Download U.S. patents (in PDF) and more! To download a copy of a ......
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日期:2024-07-28
A list of online databases for a free patent search covering Canada - United States - Europe - WIPO and the EPO free ......
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日期:2024-07-28
US patent - Online discussion summary by BoardReader. Aggregated data from online sources for the term " ......
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日期:2024-07-28
Germany [DE] Free DPMA Expert Search [since 01/2002, issue weekly] DEPATISnet Expert search [The DEPATISnet online service of the German Patent and Trade Mark Office is constantly being updated] DEPATISnet Patent family search [The DEPATISnet ......
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日期:2024-07-29
In the United States a design patent can be granted for a "new, original, and ......
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日期:2024-08-03
Patents are published by USPTO once a week, on every Tuesday. An average ......
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日期:2024-07-28
Field Name, Syntax Example and Comments. US Patent Reference, REFN / ......
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日期:2024-08-03
US Classification. A system used by the USPTO using a 3-digit class and a ......