PatentsView vs USPTO

PatentsView, the NBER/USPTO-backed tool for mining trends across the US patent landscape, folded into the USPTO's unified Open Data Portal (ODP) in March 2026, retiring the standalone patentsview.org domain and its old keyless endpoint. Access now runs through ODP's api.uspto.gov gateway, which requires a free API key tied to a USPTO.gov account and returns JSON over HTTPS with CORS enabled. Every patentsview.org URL, including the one previously on file here, now 301-redirects to USPTO's own transition guide rather than serving data directly.

USPTO's patent data and query APIs now live under the agency's Open Data Portal (ODP) at data.uspto.gov, a single platform that folded in what used to be the Patent Examination Data System, Bulk Data Storage System, and several Developer Hub services. Every ODP endpoint sits behind api.uspto.gov, requires a free API key tied to a USPTO.gov account, and returns JSON with CORS enabled — confirmed live via an Origin-header probe that got back access-control-allow-origin: * on both the request and its OPTIONS preflight. The stored learning-and-resources page itself has been renamed to a 'Data and statistics' hub that links out to the ODP.