Are you interested in patents? Do you use Derwent Innovations Index?
Derwent Innovations Index is a unified collection of unique patent-related information with additions, which was given by more than 50 patent bodies and indexed by Derwent World Patent Index (from 1963 to present), with the citation of patents, indexed by Derwent Patents Citation Index (from 1973 to present).
Derwent Innovations Index is one of the Web of Science databases.
In each description, you will find the title, patent number, inventors, names and codes of patent holders, annotations, international patent classification, as well as other useful information.