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- Free Patents Online
  
  Complete Patent Searching Database and Patent Data Analytics Services.
  
  2026-04-24
  
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- www.freepatentsonline.com
  
  FPO IP Research & Communities - Free Patents Online
  
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Espacenet: EPO

日期：2026-04-23

2011年3月24日 - Espacenet - patent search. ... GPI - advanced search. Espacenet. Patent search. Espacenet offers free access to more than 80 million patent ......

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IBM - Intellectual Property Licensing - IBM - United States

日期：2026-04-24

IBM's vast collection of intellectual property can bolster the freedom to operate a business, make it more efficient or launch new products. ... Contact us Email us Submit your proposal News about IP 20 years of patent leadership For the 20th year in a ro...

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TheFreeDictionary.com - patent - definition of patent by the Free ...

日期：2026-04-22

pat·ent - n. 1. a. A grant made by a government that confers upon the creator of an invention the sole right to make, use, and sell that invention for a set period of time....

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PriorSmart.com: Free worldwide patent search

日期：2026-04-21

Free, worldwide patent search. Search over 60 different national offices and patent search sites at once....

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Free Patent Search Online - Inventors - About.com

日期：2026-04-18

A list of online databases for a free patent search covering Canada - United States - Europe - WIPO and the EPO free ......

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Espacenet - Home page

日期：2026-04-18

11 Jun 2014 ... Logo European Patent Office. Espacenet ... About Espacenet; Other EPO online services. Searching ......

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Search for Patents | USPTO

日期：2026-04-18

2009年7月4日 - Find existing patents, published patent applications and other published patent documentation....

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WIPO - Search International and National Patent Collections

日期：2026-04-20

This patent search tool allows you not only to search the PCT database of about 2 million International Applications but also the worldwide patent collections....

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