Notice on the Activation of the International Patent Classification (Version 2026.01)

2026-01-12
To ensure the accuracy and validity of the International Patent Classification Number (IPC) in Chinese patent documents, starting from January 1, 2026, the National Intellectual Property Administration will adopt the IPC (version 2026.01) to classify and publish announcements for Chinese patent documents. 

Compared with the IPC (version 2025.01), the new version of IPC has revised a total of 1,615 classification numbers. Among them, 517 new classification numbers have been added and 206 classification numbers have been deleted. 

To facilitate the learning and application of the new version of IPC, the National Intellectual Property Administration has translated relevant materials of IPC (version 2026.01), including the IPC classification table, classification definitions, and a comparison table of the old and new versions. These can be obtained through the official website of the National Intellectual Property Administration. 


Address: https://www.cnipa.gov.cn/col/col3161/index.html 
This is to inform you.



National Intellectual Property Administration
December 31, 2025
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