Derwent Innovations Index is a research tool that provides Web access to more than 45 million inventions detailed in over 95 million patent documents. It includes links to cited and citing patents, cited articles, and full-text patent data sources.
It allows you to browse patent records by entering simple search queries.
Coverage includes patent records from Derwent World Patents Index and patent citation information from Derwent Patents Citation Index.
Derwent World Patents Index® (DWPI) is the world's most comprehensive collection of professionally abstracted and annotated patent documents. DWPI covers more than 45 million inventions (Basic Records/patent families) detailed in over 95 million patent documents, with coverage from 50 worldwide patent authorities and 2 literature sources.More information about DWPI coverage, along with lists of WIPO country codes and INID codes can be found on the DWPI coverage page.
The Derwent Patents Citation Index® (Derwent PCI) is an online database of citation data appearing in patents from 6 major patent authorities. It provides details of citations, both patent and literature, reviewed by the examiner during the examination of a patent application.
Derwent PCI is the only database providing multi-source patents citation coverage of all technologies. Prior to May 1997, examiner and author citations were provided for 16 patent-issuing authorities. The database also contains a backfile with patent records dating back to the 1970's.
Derwent PCI contains all up-to-date bibliographic patent family data from Derwent World Patents Index and all patents and literature cited by examiners, as well as references to citing patents. Each week, new cited and citing references are added for approximately 45,000 records.
Derwent Innovations Index also includes Derwent Chemistry Resource, a unique database containing chemical structures (NB! No access via CBS Library)
Patents are by nature very technical documents that can be difficult to read and are condensed into only the most important information. To enhance searchability and discoverability of patent data the Derwent Innovations Index has added valuable metadata to the patent record:
For more information on the content of the database and on how to search in the database choose Basic Search > Search tips
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