CPC Notices of Changes (NoCs)
The CPC Notices of Changes are the official records of changes for the Cooperative Patent Classification system. The Notices contain information on Deleted and New subclasses and groups, as well as other changes. CPC Notices of Changes are released to the patent community and to the general public as they are issued, usually on the first of the month.
Refer to the Notices of Editorial Corrections for changes made outside of Projects to correct errors in the CPC content and/or XML metadata.
Latest Publication: 2017.08
Note: Projects ending in "-F" designate "finalisation" of Revision Projects in which reclassification has been completed.