World Intellectual Property Organization

Guidelines for Revision and for Use of the IPC

  • Guide to the IPC [version 2013 PDFDOC]
  • Guidelines for Revision of the IPC [PDF] [DOC]  
  • Guidelines for Determining Subject Matter to be Classified [PDF] [DOC]
  • Guidelines for Determining Where to Classify Patent Documents [PDF] [DOC]
  • Guidelines for Drafting Classification Definitions [PDF] [DOC]
  • WIPO Standard ST.8 ("Standard Recording of International Patent Classification (IPC) Symbols on Machine-Readable Records") [PDF]
  • WIPO Standard ST.10/C ("Presentation of Bibliographic Data Components") [PDF]

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