Scientists, information professionals, and patent experts at the world's major patent offices and research organizations rely on STN to discover and analyze key information for answering business critical questions and fueling informed decisions about intellectual property:
95% of the world's patent applications are reviewed by patent offices that choose STN.
The world's top 25 pharmaceutical companies choose STN.
7 of the world's top 10 issued IP law firms choose STN.
Only STN offers access to global scientific information on one integrated platform, including the authoritative chemistry content from CAS and patent content from Clarivate Analytics' Derwent World Patent Index®.
The robust search features of STN give you the flexibility to search as broadly or as narrowly as you need, with unique tools and features that specifically address the challenges of searching and analyzing sci-tech, chemical, and patent information.
STN goes beyond content and tools. As your partner with more than 30 years of dedicated service to professional searchers, we care about the quality of your search results and are ready to help when you need us.
STNext delivers the STN content and capabilities users rely on in a secure, browser-based interface:
Securely access STN from any computer, without installing desktop software or plug-ins.
Streamline workflow with an intuitive interface.
Take immediate advantage of the latest STN enhancements.
For more information about STN, please visit www.cas.org or www.stn-international.com. STN is operated jointly by CAS and FIZ Karlsruhe worldwide and represented in Japan by JAICI.