How to Search - United States Patent and Trademark Office 2013年8月23日 - Guides > How to Search ... Patents, Trademarks and more ...
Published Patent Application Access and Status Information Sheet ... 30 Jun 2011 ... On-line: Patent application publications are available electronically on the USPTO ... Director Of United States Patent and Trademark Office
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Search - USPTO Web Patent Databases - United States Patent ... 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。
US Patent and Trademark Office Full-text and Image Database The database consists includes information about all US patents (including utility, design, reissue, plant ...