Derwent Innovations Index

Derwent Innovations Index facilities rapid, precise patent searching and merges the value-added patent infromation from Derwent World Patents Index with the patent citation information from Derwent Patent Citation Index.  It searchs patent information of inventions in chemical, electrical, electronic, and mechanical engineering.

Publisher: Thomson Reuters
Publisher URL:
Vendor: Thomson Reuters
Coverage: 1963 - present
Print Equivalent:
Format: C/A