MPEP § 905 — Cooperative Patent Classification (Annotated Rules)
This page consolidates and annotates all enforceable requirements under MPEP § 905, including statutory authority, regulatory rules, examiner guidance, and practice notes. It is provided as guidance, with links to the ground truth sources. This is information only, it is not legal advice.
Cooperative Patent Classification
This section addresses Cooperative Patent Classification.
Source Text from USPTO’s MPEP
This is an exact copy of the MPEP from the USPTO. It is here for your reference to see the section in context.
Official MPEP § 905 — Cooperative Patent Classification
Source: USPTO905 Cooperative Patent Classification [R-07.2015]
Cooperative Patent Classification (CPC) is a bilateral classification system jointly developed by the United States Patent and Trademark Office (USPTO) and the European Patent Office (EPO). CPC is jointly managed and maintained by both offices and is available for public search for classification.