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日期:2026-04-18
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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日期:2026-04-24
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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日期:2026-04-25
Home page of the United States Patent and Trademark Office's main web site....
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日期:2026-04-21
The US Patent and Trademark Office (
PTO) offers World-Wide Web (Web) ......
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日期:2026-04-22
Complete Patent Searching Database and Patent Data Analytics Services....
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日期:2026-04-21
Note that most fields support Phrase (ABST/"cardboard box"), Proximity ......
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日期:2026-04-21
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 ......




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