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US Patent and Trademark Office

Provides access to a variety of patent and trademark information, including patent descriptions, application materials, and relevant publications.

Search the USPTO Web Patent Databases for full page images of U.S. patents since 1790, full text of U.S. patents since 1976 and U.S. patent applications published since March 15, 2001.

Search trademarks in the U.S. Trademark Electronic Search System (TESS).

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Last modified: Monday, 07-Aug-2006 08:39:49 CDT
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