The “df_ENV” dataset comprises 125 054 patent‐application records across four fields. It was processed for use in Chun & Hwang (2024)¹ to represent the environmental‐technology patent subset within the cross‐density framework. All records are published under CC BY 4.0 on Hugging Face².
Please cite Chun & Hwang (2024) when reusing this dataset:
Chun, Y., & Hwang, J. (2024). The Nexus of Artificial Intelligence and Green Innovation: A Cross-Density Analysis at the Country Level. Journal of the Knowledge Economy, 15(2), 456–478. https://doi.org/10.1007/s13132-024-02076-8
Column Description
ap Patent application identifier (integer), matching the same IDs used in the main patent corpus.
Year Application year (integer, e.g. 2019).
Country ISO 3166-1 alpha-3 country code of the applicant’s residence (e.g. “USA”, “KOR”).
Product Four‐digit CPC classification code indicating environmental‐technology patents (e.g. “F01N”).
¹ Chun & Hwang (2024) applied this environmental‐technology subset i…
