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日期:2025-04-01
Most Popular Patent Content Recent documents: US Patents US Applications US Design Patents Miscellaneous: Crazy Patents University Patents Chemical Patents New Computers: Permitting Access Electrical Computers...
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日期:2025-04-07
US Plant Patent pp05000 [add leading 0's if needed] US Reissue re34343 US Statutory Invention Reg. h1234 Multiple Requests Separate with a semicolon: 12345; pp6000 Enter Number(s): To link to a patent, please use the ......
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U.S. Patents is no longer available through COS.com. For U.S. Patent information, try visiting www.uspto.gov. COS' parent company, ProQuest, provides seamless access to more than 125 billion digital pages of the ......
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Complete Patent Searching Database and Patent Data Analytics Services. ... Note that most fields support Phrase (ABST/"cardboard box"), Proximity (ABST/"cardboard box"~5), Wildcard (ABST/card*), and Leading Wildcard ......
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Home page of the United States Patent and Trademark Office's main web site....
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美國專利商標局(US Patent and ... Google Patent Search 美國專利搜尋網站....
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The US Patent and Trademark Office (
PTO) offers World-Wide Web (Web) ......