The CNIPA’s Patent Document Authority File contains information on the different kinds of publications of patents for inventions and utility models published by the China National Intellectual Property Administration since 1985 based on WIPO ST.37.
For detailed information, please refer to the official CNIPA resources:
- English version: CNIPA Official Website
- Chinese version: CNIPA 官方网站
Note: The official CNIPA website only provides access to the most recent version of the Authority File.
Current Version:
Historical Versions