PatSnap/novelty-search-bench

PatSnap Novelty Search Bench

This dataset contains 80 patent novelty search examples. Each example has a query patent publication number and publication numbers for examiner cited X type prior art. The examples include references cited for the query patent and for members of its patent family.

Dataset overview

Property	Test split
Examples	80
Query jurisdictions	CN 39, US 26, EP 11, WO 4
Query languages	CN 40, EN 40
Example type	Family expanded
License	CC BY-NC 4.0

Load the data

from datasets import load_dataset

test = load_dataset("PatSnap/novelty-search-bench", split="test")
print(len(test))  # 80
print(test[0]["pn"], test[0]["pn_x"])

Field	Type	Meaning
pn	string	Query patent publication number
apdt	int64	Application date, YYYYMMDD
ipc	list[string]	IPC codes
ipc_main	string	Main IPC section
lang	string	Query language, CN or EN
jurisdiction	string	Query patent jurisdiction
type	string	Example type, family in this split
pn_x	list[string]	X type references cited for the query patent
pn_x_family	list[string]	Publication numbers in the families of pn_x references
pn_family_x	list[string]	X type references cited for query family members
pn_family_x_family	list[string]	Publication numbers in the families of pn_family_x references

The file is JSONL with one example per line. pn_x and pn_family_x contain cited publication numbers; the corresponding *_family fields contain publication numbers for patents in their families. Query specification text is not included.

Scope and limitations

The cited references are not an exhaustive list of relevant prior art. The dataset covers the query jurisdictions and languages listed above.

Citation

@article{zhang2025novelty,
  title   = {Research on Evaluation Methods for Patent Novelty Search Systems and Empirical Analysis},
  author  = {Zhang, Shu and Zhang, LiSha and Duan, Kai and Sun, XinKai},
  journal = {arXiv preprint arXiv:2508.17782},
  year    = {2025},
  url     = {https://arxiv.org/abs/2508.17782}
}

@dataset{patsnap_novelty_search_bench_2026,
  title  = {PatSnap Novelty Search Bench},
  author = {PatSnap},
  year   = {2026},
  url    = {https://huggingface.co/datasets/PatSnap/novelty-search-bench}
}

License

Released under CC BY-NC 4.0 for research and non-commercial evaluation.