Patent and intellectual property collections: a large, structured, largely public-domain corpus that is under-used in RAG applications.
5sources
Free access to over 140M patent documents from the European Patent Office (EPO). Its Open Patent Services text analysis tools have made patent full texts much easier to reach, though the terms are open access rather than an open reuse licence.
A query-based collection of over 120M patent documents from more than 100 patent offices worldwide, including applications, pre-grant publications, and granted patents. Accessible through Google BigQuery, with hundreds of millions of USPTO events also queryable.
A large-scale, structured corpus of US patent applications built specifically for machine learning and natural language processing research. It fills the gap left by mainstream patent search tools, which are not designed with the ML and NLP community in mind.
A platform from the US Patent and Trademark Office (USPTO) for exploring US patent data, with visualisation and analysis tools. It connects patents, inventors, organisations, and locations in a regularly updated database, and offers both an API and complete bulk data tables.
A search service for international patent collections, maintained by the World Intellectual Property Organization (WIPO). It lets you search across patent applications filed under international treaties alongside national collections from many countries.