EPO and USPTO launched the Cooperative Patent Classification System
The CPC is the result of a partnership between the EPO and the USPTO in their joint effort to develop a common, internationally compatible classification system for technical documents, in particular patent publications, which will be used by both offices in the patent granting process.
News
10 March 2015
The complete set of CPC Definitions has been replaced in the table with more than 200 definitions updated. Please refer to NoC 63 and NoC 64 for details.
03 March 2015
The 2015.04 CPC products are now available in the pre-release area.



