Derwent Innovations Index

Access Now: Derwent Innovations Index

Librarian: Jennifer Garrett

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What it is:

  • A specialized database for searching U.S. and foreign patents in the areas of chemical, electrical and mechanical engineering.

What you can expect to find:

  • 30+ million patents from 1966 - current, updated on a weekly basis.
  • Standardized unique assignee codes for 21,000 companies worldwide.
  • Re-written descriptive patent titles and abstracts for simple keyword searching.
  • Applications and issued patent information.
  • Access to full text and images for most patents.

Some useful things you can do:

  • Look up specific patents and access the full text and images in PDF.
  • Search for examiners' cited patents and related literature, including cited references of articles indexed in Web of Science.
  • Search for patents pertaining to a specific company or organization.
  • Search for patents using various classification codes including DPWI and IPC.
  • Analyze a set of results to rank counts by date, inventor, assignee or class.
  • Save searches and create alerts or rss feeds.
  • Export citations to reference management software such as RefWorks or Zotero.


  • Can only export up to 500 records at a time.
  • May need to access full text of patent and/or cited literature in an alternative source at the library or via issuing agency.

Content sources:

  • 40+ patent issuing agencies from around including, North and South America, Europe, Asia and South Africa.

Available Tutorials and Related Materials:

Video Patent Searching

PDF PDF version