Patent

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United States Patent and Trademark Office

The US Patent and Trademark Office (PTO) now offers World-Wide Web (Web) access to bibliographic and full-text patent databases.

http://www.uspto.gov

Patent - Wikipedia, the free encyclopedia

A patent is a set of exclusive rights granted by a state to a patentee (the inventor or assignee) for a fixed period of time in exchange for the regulated, ...

http://en.wikipedia.org/wiki/Patent

Google Patents

Search more than seven million US patents.

http://www.google.com/patents

Patent Analytics and Patent Searching

Complete Patent Searching Database and Patent Data Analytics Services.

http://www.freepatentsonline.com/

The European Patent Office

The executive body of the European Patent Organisation.

[http://www.epo.org/

Knowledge:

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