STN is an online database service that provides global access to published research, journal literature, patents, structures, sequences, properties, and other data. 

With STN, find precisely the patent and sci-tech information needed to make business-critical decisions:

• Assess risk for future research endeavors
• Defend corporate/organizational intellectual property
• Track competitive intelligence for existing products and those under development
• Access patent expiration and extension information
• Support strategic business planning

STN is operated jointly by CAS and FIZ Karlsruhe worldwide and is represented in Japan by JAICI.

BEILSTEIN substance information now available on STN Easy® 
Now you can find additional basic substance information and key property data by searching a portion of the BEILSTEIN database on STN Easy.
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INSPEC – Celebrating 40 years of moon landings, colour television and Inspec
The last year of the swinging sixties was famous for a number of technological advancements including the launch of the Institution of Engineering and Technology’s (IET) INSPEC Database.
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Derwent WPI has been enhanced with Japanese Patent Classification Data

Japanese Patent Classifications (FI-Terms) and FTERMs have been introduced in the DWPI database (files WPINDEX/WPIDS/WPIX) in December 2008. About 5.25 million Japanese patents in about 4.5 million DWPI documents have been equipped with current Japanese Classification data for 1966 to 2007.
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Automatic inclusion of English/American spelling variations - new SET command increases convenience of searching STN
Have you ever wondered whether including spelling variations of certain  terms (such as sulfur or sulphur and aluminum or aluminium) in your search query would improve the retrieval of your answer sets? Now you  can be assured of maximum retrieval by employing the new SET SPELLINGS  command.
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