MPEP 905
Cooperative Patent Classification

Ninth Edition of the MPEP, Revision 10.2019, Last Revised in June 2020

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905    Cooperative Patent Classification [R-07.2015]

Cooperative Patent Classification (CPC) is a bilateral classification system jointly developed by the United States Patent and Trademark Office (USPTO) and the European Patent Office (EPO). CPC is jointly managed and maintained by both offices and is available for public search for classification.