Chinese Invention Patent Records With Validated Crosswalk

Aggregating 25.4 million processed Chinese invention patent records from 1985 to 2024, sourced from Google Patent Public Data. It includes 13 relational tables and a validated crosswalk with official CNIPA records, achieving a 99.96% coverage rate against the authority file.

Use Cases

• Analyze patent filing trends over time using the 1985-2024 temporal coverage of the 25.4 million records.
• Validate and link patent records using the GPPD-ADCP Master Key crosswalk with official CNIPA data.
• Study innovation patterns by examining the relational structure across the 13 provided tables.
• Assess data completeness and quality by leveraging the documented 99.96% coverage rate against the CNIPA authority file.

Strengths

• Contains 25.4 million processed patent records, providing a substantial data volume.
• Systematically validated against the official CNIPA authority file with a 99.96% coverage rate.
• Includes a validated crosswalk (GPPD-ADCP Master Key) for linking to official records.
• Covers a long temporal range from 1985 to 2024.

Limitations

• The specific columns and schema for the 13 relational tables are not detailed in the input.
• The raw description does not specify file formats or the total dataset size.
• Potential geographic bias as the data is exclusively focused on Chinese patents.

Provenance

Source

Google Patent Public Data, processed and validated.

Collection Method

Processed using open-source scripts and validated against the official CNIPA authority file.

Time Range

1985 to 2024

Freshness

Last updated on 2026-03-11.

Geography

China