World Intellectual Property Organization

IPC - Technology Concordance Table

The WIPO technology concordance table links the International Patent Classification (IPC) symbols with thirty-five fields of technology. The concordance table is updated on a regular basis to reflect revisions to the IPC.

Last update date: January 2013

The latest version of the concordance table is available in an Excel file [XLS]

The concept and methodology used to develop the concordance as well as the initial version of the concordance table are presented in a PDF document [PDF]

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