Chemical Abstracts Service (CAS), a division of the American Chemical Society (ACS), and FIZ Karlsruhe announce a new version of STN AnaVist analysis and visualization software. The newest version features Derwent World Patents Index (DWPI), along with new developments in functionality that address customers' most requested enhancements. DWPI from Thomson Scientific is a database of value-added patent information. STN AnaVist works with STN Express, Version 8.2, to analyze content from STN, an online service for science and technology. Now, in addition to analyzing search results from the multidisciplinary CAplus database and the patent databases USPATFULL and PCTFULL, the new version of STN AnaVist analyzes content from Derwent World Patents Index (DWPI), a database providing information on patent publications from patent-issuing authorities.