EPO
European patent search system api
You could build… A prior-art search for a solo inventor over a US or European patent API.
Mango Labs
Public API idea board. Patent is one of 51 categories in the public-apis GitHub list. This page lists all 4 APIs filed under Patent in the fetch on 2026-09-30 (README commit 8939d46). Descriptions are that list’s own lines, not rewrites. A pricing label is shown only when those lines state a price; otherwise it says pricing not listed.
Notes already stored with this category in the catalog.
European patent search system api
You could build… A prior-art search for a solo inventor over a US or European patent API.
API is intended to explore and visualize trends/patterns across the US innovation landscape
You could build… A prior-art search for a solo inventor over a US or European patent API.
Taiwan patent search system api
You could build… A prior-art search for a solo inventor over a US or European patent API.
USA patent api services
You could build… A prior-art search for a solo inventor over a US or European patent API.
Same fetch, every category page.