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Derwent Innovations IndexSM: 1993-present

Description: 

 Derwent Innovations Index® facilitates rapid, precise patent searching, letting you conduct patent and citation searches of inventions in chemical, electrical, electronic, and mechanical engineering.  Value-added patent information from Derwent World Patent Index® as well as patent citation information from Patents Citation Index®. 

Vendor: 
Thomson Reuters
Coverage: 
1993 - Current
Abbreviation: 
diidw
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