Derwent Markush Resource – now available on STN

The integration of Derwent Markush Resource into the new STN platform provides patent information professionals with a comprehensive view into the patentability of a chemical structure. By presenting Markush structures alongside the comprehensive Derwent World Patents Index® (DWPI) patent summaries, information professionals can conduct business-critical searches (such as freedom-to-operate), with greater efficiency, and the enhanced structure displays allow for clear understanding and a significantly faster results evaluation process. Derwent Markush Resource search queries are constructed using the standard STN structure conventions, enhancing ease-of-use for existing users.
Markush structures (i.e. structures having generic or variable components) are widely used in chemical and pharmaceutical patents to protect a series of related compounds within a single invention. Pharmaceutical companies typically use Markush structures in patents to obtain strong protection of potential new drugs. As a result, Markush patent searching is crucial for assessing the patentability of a substance or substance class. IP professionals need this to explore freedom-to-operate at various stages of development, and to assess the value of a patent portfolio in the chemical and pharmaceutical field.
The Derwent Markush Resource database (file DWPIM) enables customers to perform more comprehensive chemical patent searches, and is seamlessly integrated into the Thomson Reuters / Derwent patent and chemistry content on the new STN platform.
Learn more HERE
File Specifics:

  • Structure-based database including 1.9 million Markush structures from more than 780,000 Derwent World Patents Index (DWPI) documents
  • Coverage includes 33 patent authorities
    • US, EP and WO, coverage begins in 1978.
  • DWPI structures from 1987 to date
  • INPI (Institut National de la Propriété Industrielle) structures from 1961-1998
  • Full coverage of organics, organometallics, inorganic salts and metal oxides
  • Partial coverage of alloys, intermetallics and polymers