Derwent Innovations IndexSM

Derwent Innovations IndexSM is a research tool that provides web access to more than 30 million inventions detailed in over 65 million patent documents. It includes links to cited and citing patents, cited articles, and full-text patent data sources. In addition Derwent Innovations Index:

  • opens the power of patent searching to all levels of an organization, allowing you to browse patent records by entering simple search queries. Coverage includes patent records from Derwent World Patents Index and patent citation information from Derwent Patents Citation Index.
  • includes Derwent Chemistry Resource (separate subscription required), a unique database containing chemical structures that you can search by entering chemical search terms or chemical structures. The Derwent Chemistry Resource allows you to browse through the chemical structure database to develop new ideas on compound structure advances and to learn about new compounds that have hit the market.

  • Derwent Chemistry Resource allows you to browse through the chemical structure database to develop new ideas on compound structure advances and to learn of new compounds that have hit the market.

Derwent categorizes patent documents using a simple classification system for all technologies. This unique classification is consistently applied to all patents by Derwent's subject experts, enabling effective and precise searching in a particular area of technology. Patents are divided into the following three broad areas (class codes) within the database. Each broad area is divided into sections designated by a capital letter.

These broad areas are divided into 20 broad subject areas or sections, and these sections are further subdivided into classes. Each class consists of the section letter, followed by two digits. For example X22 is the class designation for Automotive Electrics and C04 is the class for all Chemical Fertilizers. When used in combination with other search criteria (e.g., a topic search), these classes allow you to precisely and effectively restrict your search to the relevant subject area. For example, the otherwise ambiguous word WARN can be combined with X22 (Automotive Electrics) to retrieve only those references to automotive warning devices. Derwent cross classifies entries to ensure all the patents of interest are retrieved when searching.

Database Coverage: 1963 to present

Requirements

  • The Derwent Chemistry Resource requires a subscription to search for compound structures in Derwent Innovations Index.
  • To search for and view chemical structures in Derwent Innovations Index, you must be able to use Elemental drawing tool by Dotmatix Knowledge.

Derwent Chemistry Resource - a subscription is required to search for compound structures in Derwent Innovations Index.

To search for and view chemical structures in Derwent Innovations Index, you must be able to use Elemental drawing tool by Dotmatix Knowledge.

Derwent Innovations Index

Derwent Innovations Index is the world's most comprehensive database of international patent information, merging Derwent World Patents Index® with Derwent Patents Citation Index®.

Derwent World Patents Index

Derwent World Patents Index® (DWPI) is the world's most comprehensive collection of professionally abstracted and annotated patent documents. It covers more than 30.5 million inventions (basic records/patent families) detailed in over 65 million patent documents, with coverage from 50 worldwide patent authorities and two literature sources. All patent data is regularly updated with new information obtained from Derwent World Patents Index, including data associated with the Derwent Chemistry Resource, a unique chemical structure database. More information about DWPI coverage, along with lists of WIPO country codes and INID codes can be found on the DWPI coverage page.

Derwent Patents Citation Index

The Derwent Patents Citation Index® (Derwent PCI) is an online database of citation data appearing in patents from six major patent authorities. It provides details of citations, both patent and literature, reviewed by the examiner during the examination of a patent application.

Derwent PCI is the only database providing multi-source patents citation coverage of all technologies. Prior to May 1997, examiner and author citations were provided for 33 patent-issuing authorities. The database also contains a backfile with patent records dating back to the 1970's.

Derwent PCI contains all up-to-date bibliographic patent family data from Derwent World Patents Index and all patents and literature cited by examiners, as well as references to citing patents. Each week, new cited and citing references are added for approximately 45,000 records from six major patent-issuing authorities.

Derwent Chemistry Resource

Derwent Chemistry Resource is a unique database that contains searchable chemical structures and other substance-based information. It is used to search for specific compounds that are indexed in Derwent World Patents Index records. Think of Derwent Chemistry Resource as a searchable, central indexing system for chemical information in Derwent records, a single point of entry in which you can search for chemical entities in all of Derwent's bibliographic records.