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.
07 August 2017
Access to the website may be subject to disruption due to maintenance on 8 August 2017. We apologise in advance for any inconvenience.
01 August 2017
The 2017.08 version of the CPC Scheme is now in force.