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Patent Databases Research Guide

Free Patent Data Sources

The LENS serves nearly all of the patent documents in the world as open, annotatable digital public goods that are integrated with scholarly and technical literature along with regulatory and business data.

 The Lens will allow document collections, aggregations, and analyses to be shared, annotated, and embedded to forge open mapping of the world of knowledge-directed innovation. Ultimately, this will restore the role of the patent system as a teaching resource to inspire and inform entrepreneurs, citizens and policy makers.


  • The European Patent Office’s DocDB bibliographic data from 1907 - present: 81+ Million documents from nearly 100 jurisdictions.
  • USPTO Applications from 2001 – present with full text and images.
  • USPTO Grants from 1976 – present with full text and images.
  • USPTO Assignments (14+ Million).
  • European Patent Office (EP) Grants from 1980 – present with full text and images.
  • WIPO PCT Applications from 1978 – present with full text and images.
  • Australian Patent Full Text from IP Australia