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
1 April 2015
As announced, the 2015.04 version of the CPC scheme which was pre-released on 3 March 2015 is now in force.
Due to maintenance works foreseen on some of the EPO servers, the 2015.04 scheme will only be available on Espacenet as of 9 April 2015.



