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    FederalCooperative Patent Classification (CPC) Master Classification File (MCF) for U.S. Patent Applications (2001 - Present)Department of Commerce — Contains Cooperative Patent Classification (CPC) classification information for all Utility patent applications published by the U.S. Patent and Trademark Office...
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    FederalCooperative Patent Classification (CPC) Master Classification File (MCF) for U.S. Patent Grants (1790 - Present)Department of Commerce — Contains Cooperative Patent Classification (CPC) classification information for all Utility patent grants issued by the U.S. Patent and Trademark Office (USPTO) from...
