CAS STNext® – the Choice of Patent Experts

CAS STNext® is the premier single source for searching the world's disclosed scientific and technical research. Providing integrated access to the most current and complete collection of global disclosed patent and non-patent, scientific and technical content, CAS STNext® supports comprehensive retrieval to inform critical business decisions. CAS STNext® puts instant access to over more than 100 diverse data collections at your fingertips, including leading chemistry content from CAS and patent content from Clarivate's Derwent World Patents Index.


A new Setting now available in CAS STNext allows you to better manage your Transcripts
Recent additions of Malaysian, Saudi Arabian and Georgian patents increase the comprehensiveness of INPADOCDB and INPAFAMDB and provides unique coverage of certain documents published only in those countries.
The latest Emtree version adds 83 new drug terms and 962 non-drug terms. The thesaurus now contains about 94,586 preferred terms and about 500,000 synonyms.
Exclusively for the benefit of STN customers, the PPAK field now includes "Claim" tags for substances appearing in the Claims, and the PatentPak Interactive Viewer has been updated to support this enhancement.