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New STN - Version One

What’s New

April 2017

Latest Release of New STN Enhances Search History and Expands Database Coverage

October 2016

Latest Release of New STN Extends Export to Excel Support to 28 More Databases

Press Releases

November 2015

FIZ Karlsruhe and Thomson Reuters Advance Chemical Structure Patent Search

August 2015

New STN® Breaks Ground with Markush Structure Search and Enhanced Content for Intellectual Property Exploration and Research


Im chemischen Strukturraum
T. Stengel, A. Barth, H. Kraut, P. Löw in Nachrichten aus der Chemie, Juni 2016

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New STN – Remaking a Classic While Keeping the Classic
Online Searcher Magazine,
March/April 2016

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First Look - New STN - Big Data Creates Chemistry Without Limits
Anthony Trippe’s blog entry, Patinformatics, LLC, August 17, 2013

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STN Version One: New Searching Platform Under Development
Information Today, Inc., January 24, 2013

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FIZ Karlsruhe and Thomson Reuters Advance Chemical Structure Patent Search

19. November 2015

Collaboration provides patent searching and assessment of Markush chemical structures, with Derwent Markush Resource fully integrated into the new STN search environment

London, UK / Karlsruhe, Germany – November 2015 — FIZ Karlsruhe — Leibniz Institute for Information Infrastructure and the Intellectual Property (IP) & Science business of Thomson Reuters are pleased to announce that Derwent Markush Resource is now available on STN InternationalSM, the leading online service for research and patent information. Markush structures are widely used in chemical and pharmaceutical patents to protect a family of related compounds within a single invention.
The integration of Derwent Markush Resource into STN provides patent information professionals with a comprehensive view into the patentability of a chemical structure. The user-friendly environment includes all major chemical databases and enhanced structure displays allowing for a clearer understanding and significantly faster search and evaluation. By presenting Markush structures alongside the comprehensive Derwent World Patents Index® (DWPISM) patent summaries, information professionals can conduct business critical searches, such as freedom to operate, with greater efficiency.
“We are proud to collaborate with FIZ Karlsruhe to accelerate the pace of innovation in the pharmaceutical and chemical sectors”, said Gordon Macomber, global head of innovation industries at Thomson Reuters IP & Science. “Through this partnership, we can provide comprehensive access to chemical structure data, seamlessly integrated with the world’s leading patent collection in Derwent World Patents Index. Patent research professionals can now assess the patentability of chemical structures more completely than ever before.”
“Markush searching is a challenging task mainly performed by patent information experts. FIZ Karlsruhe has developed a search environment for the Derwent Markush Resource to ensure complete and efficient searching of chemical patent information for the patent community. STN now offers a unique combination of content and powerful search functionality. Our customers will benefit from increased efficiency due to an improved workflow – from a precise search of generic structures to the identification of relevant chemical compounds in patents. The Derwent Markush Resource is an important pillar of our chemical patent information offer”, says Sabine Brünger-Weilandt, President and CEO of FIZ Karlsruhe.
Thomson Reuters Derwent Markush Resource contains more than 1.9 million generic chemical structures indexed from more than 780,000 patents worldwide, and complements Derwent World Patents Index® (DWPISM) and the Derwent Chemistry Resource (DCR), together providing a comprehensive collection of patent chemistry on STN.
About STN
The choice of patent experts, only STN® offers access to trusted scientific and technical information including the authoritative chemistry content from CAS and patent content from Thomson Reuters’ Derwent World Patents Index®. Intellectual property professionals and patent examiners at the world’s major patent offices and research organizations rely on STN for their information needs. STN is operated jointly by CAS and FIZ Karlsruhe worldwide.
About FIZ Karlsruhe
FIZ Karlsruhe – Leibniz Institute for Information Infrastructure ( is a not-for-profit limited liability company and the largest non-academic information infrastructure institution in Germany. As such, its public mission is to develop and provide products and services for an information infrastructure to science, research, and industry. FIZ Karlsruhe strives to strengthen the transfer of knowledge in Germany and abroad and to support the promotion of innovation. FIZ Karlsruhe is a member of the Leibniz Association, which comprises almost 90 institutions involved in research activities and/or the development of scientific infrastructure. Learn more by visiting us at , or follow us on Twitter (@fiznews).
About Thomson Reuters
Thomson Reuters is the world's leading source of intelligent information for businesses and professionals. We combine industry expertise with innovative technology to deliver critical information to leading decision makers in the financial and risk, legal, tax and accounting, intellectual property and science and media markets, powered by the world's most trusted news organization. For more information, go to
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