The Derwent Innovations Index (DII) is a Web-based patent information database jointly launched by Derwent, the world's most authoritative source for patent information and information, which combines the Derwent World Patents Index (Derwent World Patent Index, WPI for short) Integrates with the Patents Citation Index (Patents Index) to provide worldwide patent information at a weekly rate. Derwent Innovations Index includes 13 million basic invention patents and 30 million patents from more than 40 patent agencies (covering more than 100 countries) and more than 25,000 patents per week, divided into Chemical, Electrical & Electronic, Engineering data back to 1963. Derwent Innovations Index provides Derwent professional patented information processing technology to assist researchers to search and utilize patent information efficiently and efficiently, to view global markets and to grasp the trends and developments of innovative technologies in engineering technology. Derwent Innovations Index also provides a direct link to the full patent electronic version of the patent, the user simply click on the record "Original Document" you can immediately connect to the Thomson Patent Store for patent applications in full electronic version. The full-text electronic version of the patent linked to the Derwent Innovations Index includes the full text of the patents published by the following patent agencies:
USPTO (U.S. Patent Office since 1963)
German Patent and Trademark Office (German Patent and Trademark Office since 1968)
ESP (European Patent Office, EP-A Since 1978, Since EP-B 1980)
WIPO (World Intellectual Property Organization, since 1978)
English translation of the first page of a Japanese patent application (since 2000)
Many other countries, such as Austria, Belgium, the former East Germany, Denmark, France, Ireland, Italy, Luxembourg, the Netherlands, Spain, Switzerland and Monaco.