Reference Tools For Developing Search Strategies
2008 Online Database Price List (PDF) - Prices are in US$, contact your host for local currency pricing
American/British Dictionary - Listing of American/British spelling differences
Derwent Standard Abbreviations - Common abbreviations used in Derwent titles and abstracts
Derwent's Classification System - Details of Derwent’s simple classification system for all technologies
Search the manual code database
IPC Corrections - Derwent corrections to IPCs and links to detailed IPC information
Patent Assignee Codes - Information on how these are developed and applied
Application of Patent Assignee Codes with respect to mergers or demergers
Patentee Code Lookup Facility - Search facility for Derwent Patentee Assignee codes
Patent Number formats on Online Hosts
Polymer Indexing news - News and assistance for polymer searchers
Search Commands Comparison - Comparison of common search terms
Search Tips & Samples - Help with online patent searching
WIPO Codes - World Intellectual Property Organization Country Codes
Glossary of Thomson Scientific Terminology