https://www.epo.org/en/node/search?update=patentinfo

Searching in databases - China

Tips & tricks for searching in databases

Easy, step-by-step instructions on how to use Chinese search interfaces without knowledge of Chinese. Click on the links below to download the respective search guides.

Number search and document retrieval

CNIPA - Retrieving Chinese documents

CNIPA - Monitoring Chinese publications by IPC classes

English machine translation

PSS - Retrieving a machine translation (English interface)

Legal status information

ACPAA - Locating Chinese patent agencies using agency codes

CNIPA - Legal status search in Chinese

CNIPA - Online file inspection in the CPQUERY database

CNIPA - Searching re-examination and invalidation decisions

CNIPA - Retrieving online gazette issues

PSS - Retrieving citation information (English interface)

Searching trademarks and designs

CNIPA - Searching Chinese trade marks

CNIPA - Searching Chinese designs using classification