Derwent Patent Citation Index

Identify influential patents during patentability research

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Derwent Patent Citation Index contains citations of patents and literature during the determination of patentability. DPCI citation makes it easy to find patents that are closely related, or to identify patents that are highly influential in a technology space.

Everyone involved in innovation at Whirlpool Corporation benefits from analysis powered by DWPI. It’s the best tool for timely review and provides a quick grasp of patent information for our technology organization.
Steve Kuehl

Principal Technologist & Global IP Coordinator,

Whirlpool Corporation

Discover your competitive edge

Derwent Patent Citation Index is an invaluable tool for IP and business professionals to quickly find closely related patents for licensing, litigation and portfolio analysis.  It allows more precise searches, improving efficiency and ultimately saving time and effort.


Patents and literature including those referenced by the examiner, inventor/author, or opposition/third party during the determination of patentability.


Authorities from 32 countries.


Citation data from all family members in a single record, providing a representation of the invention level citations; massive savings in time and effort.


Value-added Derwent World Patents Index  Assignees and PACO codes to make it easier to find relevant organizations.

Citation count

Allows you to easily compare patents to identify those that are more influential.

Derwent Patents Citation Index is a unique database

0 M

backward citations

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forward citations

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literature citations

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