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Cooperative Patent Classification (CPC) Master Classification File (MCF) for U.S. Patent Grants (1790 - Present)

Published by Classifications | Department of Commerce | Catalog Last Checked: August 01, 2026 at 04:14 AM | Dataset Last Updated: August 28, 2025
Contains Cooperative Patent Classification (CPC) classification information for all Utility patent grants issued by the U.S. Patent and Trademark Office (USPTO) from 1790 to present. It is available as XML with schemas or text monthly (usually by the 15th of the month).

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