DWPI Indexing and User Guides

To help you use our patent and scientific information effectively, Clarivate Analytics produces a range of User Guides, all written by specialists in their field.

User guides for Derwent World Patents Index (DWPI) and Derwent Patents Citation Index (DPCI) can be downloaded from the links below.

Derwent World Patents Index (DWPI)

DWPI Standard Acronyms
DWPI Patent Assignee Codes
Search for DWPI Patent Assignee Codes

DWPI Classification System
DWPI Classification Guide

DWPI Manual Codes

Chemistry Indexing

Polymer Indexing

DWPI ProQuest Prosheet
DWPI STN User Guide
DWPI Questel Fact Sheet

Derwent Patents Citation Index (DPCI)

ProQuest Prosheet
STN User Guide