How can I access the Cooperative Patent Classification (CPC) system?

The Cooperative Patent Classification (CPC) system can be accessed through various online tools provided by the USPTO and EPO. According to MPEP 902:

“The CPC system and CPC definitions are available online from the USPTO’s website at https://www.uspto.gov/patents/search and from the EPO’s website at http://worldwide.espacenet.com/classification.”

To access and utilize the CPC system:

  • Visit the USPTO’s CPC webpage for detailed information and search tools
  • Use the CPC scheme browser to navigate through classification symbols
  • Explore CPC definitions for comprehensive explanations of each classification
  • Utilize the CPC-to-IPC or IPC-to-CPC concordance for cross-referencing

These resources are freely available and can be valuable tools for patent searchers, examiners, and applicants in understanding and applying the CPC system.

To learn more:

Tags: cpc access, epo resources, patent classification tools, USPTO Resources