STN Viewer is no longer available.


 PatentPak on STN logo


As an alternative, we recommend PatentPak®, a new patent workflow solution integrated with classic STN®.

PatentPak provides:

  • Instant connection to searchable, full-text patents from major patent offices that span the globe
  • Superior patent family coverage with access to alternative language versions of a patent
  • Direct links to key substances, including both name and structure substances, in the source patent

Click here for more information on PatentPak.

Contact the CAS Customer Center for more information about PatentPak. 


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    614-447-3700 (Worldwide)
    614-447-3751 (Fax)