Patent Sites
Australian Patent Office Home Page
Australian Patent Office Search Page
Canadian Patents Database
Delphion Intellectual Property Network (formerly IBM Patent Server)
European Patent Office Home Page
European Patent Office Search Page
German Patent and Trademark Office (DEPATISnet)
Japan Patent Office
Source Translation Optimization (STO) Bad Patents Page
United States Patent and Trademark Office(USPTO) Home Page
USPTO Advanced Search Page
USPTO Patent Full Text and Image Database Search Page
World Intellectual Property Organization (WIPO)
Software
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