Miscellaneous publications

The CPC International project:

• Presentation (updated 19 August 2019)

New XML Products for the CPC Scheme and Definitions:

• Amended June 2023:  

  Document

  CPC_compilation_specification_v1_1.pdf
• Introduced in May 2019: CPC Compilation of Changes sample
• Introduced in January 2017:
  • Validity file sample
  • Notice of change XML sample 

CPC XML schemas:

• CPC Scheme Files Specification (December 2023)
• CPC Definition Files Specification (November 2023)
• CPC Scheme Files Specification (August 2021)
• Changes introduced in November 2016:
  • Notification of schema (xsd) changes for CPC scheme and definitions
  • Schema and sample files
• Changes introduced in April 2015:
  • Notification of schema (xsd) changes for CPC scheme and definitions
  • Schema and sample files

Guide to the CPC:

• Guide to the CPC (last update: 1 February 2017; links may no longer be up to date so consult linked information directly on www.cooperativepatentclassification.org)

Subclasses where 2000 series symbols are used:

• List of subclasses where 2000 series symbols are used (updated 1 May 2019)

Combination Sets:

• List of technical areas where Combination Sets are authorised for classification (updated 9 January 2026)

• List of additional Combination Sets which can be used for search only (updated 1 May 2019)

CPC Coverage:

• CPC Coverage November 2013 (PDF 519kb)

CPC News:

• October 2013 (PDF 1992kb)
• October 2012 (PDF 967kb)

General documentation:

• CPC trifold (PDF 830kb)
• CPC Presentation (PDF 550kb)