Thomson Derwent is the world`s leading patent and scientific information provider. Derwent helps companies stay ahead of their competitors by providing them with key technical, scientific, and business information drawn from patents, research journals, and conference proceedings. Our products, including the unrivalled Derwent World Patents Index, are invaluable for monitoring competitor activity, saving R&D resources, keeping up-to-date with trends, generating new revenue sources and managing patent portfolios. Researchers, information and legal professionals, R&D teams, business development managers, financial experts and all major patent offices use our databases. Thomson Derwent is part of The Thomson Corporation. For more information, visit www.derwent.com.
The Thomson Corporation, with 2002 revenues of $7.8 billion, is a global leader in providing integrated information solutions to business and professional customers.
Thomson provides value-added information, software applications and tools to more than 20 million users in the fields of law, tax, accounting, financial services, higher education, reference information, corporate training and assessment, scientific research and healthcare. The corporation`s common shares are listed on the Toronto and New York Stock Exchanges (TSX: TOC; NYSE: TOC). For more information about The Thomson Corporation, visit www.thomson.com.

