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.
7 November 2014
Due to maintenance works on our servers, this website will not be accessible on Saturday 8 November 2014.
4 November 2014
The December 2014 CPC products are now available in the pre-release area.