TIPO vs USPTO

Taiwan's Intellectual Property Office (TIPO) publishes patent gazette, application, priority, annuity, and rights-transfer records through a REST API now hosted at cloud.tipo.gov.tw, after the old tiponet.tipo.gov.tw gazette pages were retired in favor of a unified Patent & Trademark Open Data portal. Every call needs a free verification token issued by TIPO and can return JSON or XML; without a valid token the API still answers with representative sample records rather than an outright error. A live request against the actual query endpoint came back with no CORS header at all, so browser-side cross-origin calls are blocked even though the separate spec-download endpoint does allow them.

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.