DWPI and Patent Information Reference Center

Derwent World Patents Index ® (DWPI) is the world's most comprehensive database of enhanced patent documents.  Subject experts from Thomson Reuters analyze, abstract and manually index every patent record, making it easier for you to quickly find the information you need to make informed decisions. Whether you are interested in patents for their technical content, for business planning and development, or for protecting the innovations within your own organization — DWPI gives you the most complete picture possible.

DWPI contains over 30.5 million patent families covering more than 65 million patent documents, with coverage from 50 worldwide patent authorities and 2 literature sources.

DWPI provides unparalleled access to the world's patent literature with full coverage of agricultural and veterinary medicine, electronic/electrical engineering, chemistry, pharmaceuticals and polymers.


Support Center

Visit our Support Center - packed with support, reference and training information to help you use our products effectively.

50 Reasons to Use DWPI