patent APIs

The European Patent Office (EPO) Open Patent Services (OPS) API provides access to millions of European patent documents, bibliographic data, and legal status information.

PatentsView is a free US patent data API from the USPTO that lets you search, filter, and analyze millions of US patents and inventor records without an API key.

The TIPO (Taiwan Intellectual Property Office) API provides access to Taiwan's patent search system, allowing you to retrieve patent data, search by keyword, and look up inventor or applicant information for Taiwanese patents.

The USPTO API provides access to US patent data including full-text patents, patent grants, and trademark records.