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Search and view the full-text of U.S. patents from 1976 on, and patent applications beginning with March 2001. Patents issued between 1790 and 1976 are searchable only by patent number and current US classification. From the U.S. Patent and Trademark Office.
Provides online searching of existing trademark application and registration information. TESS provides public access to the same text and image database of trademarks as is currently provided to examining attorneys at the U.S. Patent and Trademark Office.