Answered By: Peter Z McKay
Last Updated: Oct 29, 2014     Views: 65

  • United States Patents and Trademark Office
    USPTO is the Federal agency for granting U.S. patents and registering trademarks. It provides searchable databases for both patents and trademarks.
  • Google Patents
    Read and download millions of patents and patent applications using Google Patent Search.
  • Patents Online
    Vernon Kisling's guide to finding patents.
  • Patents and Trademarks
    Ran Raider's guide to researching patents and trademark. Wright State University Libraries.
  • esp@cenet - European Patemt Office
    Worldwide patent database managed by the European Patent Office
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