The Lens Data

This is a full extract of data from The Lens, provided by UW-Madison’s subscription. It is available for personal use or scholarly, educational, or scientific research use.

Related: The Lens database is the searchable web-based interface to the same information.

Data Set Details

Publisher
Cambia / Lens
Access Policy
Access restricted to current UW-Madison faculty, staff and students.
Permitted Use
  • Personal or scholarly, educational, or scientific research use
  • Commercial use is prohibited
  • Re-sale of data is prohibited
Access Mode
Downloadable Files
Format
JSON Lines
Number of Records
  • Patent Data: 158,752,908
  • Scholarly Article Data: 279,978,984
Size of Data Set
  • Patent Data: 2.3TB uncompressed
  • Scholarly Article Data: 925GB uncompressed

Coverage

This data set includes scholarly article citations from sources like PubMed and CrossRef, and patent data from the U.S. Patent and Trademark Office, the World Intellectual Property Organization, and other international patent offices.

Organization

The patent data has been partitioned by the major patent jurisdictions:

Patent Data by Major Jurisdictions
Jurisdiction Name Uncompressed Size Average File Size Uncompressed Number of Files
CNIPA China National Intellectual Property Administration 210GB ~450MB 477
EPO European Patent Organization; individual European country patent offices 399GB ~1.4GB 292
JPO Japan Patent Office 99GB ~370MB 275
USPTO United States Patent and Trademark Office 1.1TB ~5.4GB 209
WIPO World Intellectual Property Organization 328GB ~5.8GB 58
Other-Agencies NA - all other patent jurisdictions 151GB ~550MB 280
Totals 2.3TB N/A 1591
*The above table represents patent data sizes across major jurisdictions. The scholarly article data is partitioned by year of publication if known.

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