About the International Patent Classification (IPC)
- Preface to the IPC
- General Information on the IPC
- Guide to the IPC [8th edition PDF] [version 2009 PDF]
- Introduction to the Internet version of the IPC
- IPC Reform
- Frequently Asked Questions about the IPC
Related links:
- Guidelines for Determining Subject Matter to be Classified [PDF] [DOC]
- Guidelines for Determining Where to Classify Patent Documents [PDF] [DOC]
- WIPO Standard ST.8 (Standard Recording of International Patent Classification (IPC) Symbols on Machine-Readable Records) [PDF]
- Use of the eighth edition of the IPC by industrial property offices (start date, core or advanced level, reclassification plans) [PDF] [DOC]
