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Google Patent Search
Search more than seven million U.S. patents.
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USPTO Web Patent Databases
The US Patent and Trademark Office (PTO) offers World-Wide Web (Web) access to bibliographic and full-text patent databases.
patft.uspto.gov
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United States Patent and Trademark Office
Patent and trademark information in the United States, including free database searching of registered trademarks, registration information, pricing and contact phone ...
www.uspto.gov
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Patent Search
Complete our simple online questionnaire; We conduct a comprehensive search based on your specifications; You receive a detailed search report by mail
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Search for Patents
Search for Patents. New to Patent Searching? See this important information about searching for patents: How do I know if my invention is patentable?
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