Answered By: Mark Mounts
Last Updated: Oct 22, 2015     Views: 157

You can use Ei Patents which offers sophisticated search and retrieval tools across all patents registered with the U.S. and European Patent Offices.

Another good search tool is Espacenet Patents search:

Espacenet provides abstracts, bibliographic data and full text of patents for: EPO, France, Germany, Switzerland, United Kingdom, United States and WIPO. Abstracts and bibliographic data are provided for: China and Japan. Bibliographic data is provided for: Argentina, ARIPO, Australia, Austria, Belgium, Brazil, Bulgaria, Canada, Croatia, Cuba, Cyprus, Czechoslovakia, Czech Republic, Denmark, Egypt, Ellas, Eurasian Patent Office, Finland, GDR, Hong Kong, India, Ireland, Israel, Italy, Kenya, Korea, Latvia, Lithuania, Luxembourg, Malawi, Mexico, Moldova, Monaco, Mongolia, The Netherlands, New Zealand, Norway, OAPI, Philippines, Poland, Portugal, Romania, Russia, Slovakia, Slovenia, South Africa, Soviet Union, Spain, Turkey, Vietnam, Yugoslavia, Zambia, Zimbabwe.

Also see: Patent Searching for more options.

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