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 February 2023
The 2023.02 version of the CPC scheme, prereleased on 13 January 2023, is in force since 1 February 2023.
See Latest news for the full year 2023 CPC Release Schedule.