STN International

STN® is the search tool that patent experts including the world's major patent offices depend on for precision searching and comprehensive, timely, and high-quality coverage of science and intellectual property information. STN provides access to more than 170 databases and is the premier single source for the world's disclosed scientific and technical research. STN databases can be accessed through STN Express®, STN® on the WebSM, and STN Easy®. STN is operated jointly by CAS and FIZ Karlsruhe worldwide and is represented in Japan by JAICI.

More info: www.stn-international.de