Open data
The PatentBrief patent dataset.
888 landmark US patents — plain-English titles, owners, grant years, citation counts, and public-domain status. Free to download, free to use.
Download
JSON ↓Structured records with metadata. Best for code and analysis.CSV ↓One row per patent. Opens in any spreadsheet.Patents JSONL ↓JSON Lines format — one object per line, streamable for AI/ML pipelines.Full-text corpus ↓Every brief as plain text, for AI ingestion.Per-patent Markdown ↓Append /md to any patent URL for a clean Markdown brief.Glossary JSON ↓Every patent term and its plain-English definition.Companies & inventors ↓Owners and inventors with patent counts and citations.Per-patent JSON ↓Append /json to any patent URL for typed structured data.Tools JSON ↓All 31 free patent tools with titles, descriptions, and URLs.Tools Markdown ↓Clean Markdown listing of all tools for AI ingestion.Full glossary Markdown ↓All patent terms in one clean Markdown document.All endpoints ↓Full list of machine-readable endpoints with descriptions.
What’s in each record
- patent_number
- The patent's number (e.g. 4405829).
- country
- Issuing office (US).
- title
- PatentBrief's plain-English title.
- assignee
- The owner on record at grant.
- grant_year
- Year the patent was granted.
- times_cited
- Forward citations — later patents that build on it.
- status
- “public domain” (expired) or “active”.
- url
- Canonical link to the plain-English explainer.
License & use
Free to use for research, journalism, and product work. Please attribute PatentBrief and link back to this page. Patent facts are drawn from public records; the plain-English titles and explanations are PatentBrief’s. See the terms.
Cite this dataset
BibTeX
@dataset{patentbrief2026,
title = {PatentBrief Landmark Patent Index},
author = {{PatentBrief}},
year = {2026},
publisher = {PatentBrief},
url = {https://patentbrief.org/data}
}APA
PatentBrief. (2026). PatentBrief Landmark Patent Index [Data set]. PatentBrief. https://patentbrief.org/data
MLA
PatentBrief. “PatentBrief Landmark Patent Index.” PatentBrief, 2026, https://patentbrief.org/data.