provided by
provided by FIZ Karlsruhe

New on STN

October 2019

Third 2019 update to Emtree(TM) now available on STN(R)

October 2019

New CAS FORMULATIONS TM Database Launched on STNext

April 2019

New legal status codes for US patent applications and granted patents in INPADOC

Meet us at

EPOPIC 2019 - EPO Patent Information Conference, 29.-30. Oct, Bukarest
IP-Service World, 25.-26. Nov, Munich

STN User Meetings

Hamburg, 23.10.2019
Milano, 23.10.2019
London, 05.11.2019

This website uses cookies. Matomo is used for the usage analysis. By continuing to use the website, you agree to this. If you object to the usage analysis or would like to learn more about cookies, please click on the privacy policy. Close

Requirements for STN Express®

Hardware Support


  • Microsoft® Windows® compatible PC
  • Minimum: Pentium® 4 (2.4 GHz)
  • Recommended: Intel compatible multi-core processor (2.0+ GHz preferred)

Memory (Minimum)

  • 512 MB RAM or recommended minimum for your operating system if higher
  • 768 MB RAM to use CAS Registry BLAST, Analyze Plus or post-processing tools
  • 2+ GB RAM (recommended)

Available Hard Disk Space

  • 205+ MB
  • 190 MB required when installation includes CAS Registry BLAST and Merged Markush Service (MMS)
  • 15+ MB recommended for transcripts, tables, reports, etc.

Network Connections

  • Connection to STN requires either the telnet protocol through port 23 (standard Winsock connection) or the HTTPS protocol through port 443 (SSL/VPN connection)
  • Automatic updating of support files and access to online Help requires an HTTP application-level connection through port 80
  • Access to CAS REGISTRY BLAST requires an HTTPS application-level connection through port 443
  • Access to CAS Full Text Options requires either an HTTP application-level connection through port 80 or an HTTPS application-level connection through port 443 (based on user preference)
  • PatentPak™ Interactive Viewer requires either HTTP or HTTPS application-level connection through port 80 or 443

Software Support

Operating System and Web Browser

  • Microsoft Windows XP™ SP3, Vista®, Windows 7 (Windows 7 Starter version is not supported), Windows 8 or 8.1, Windows 10 (STN Express 8.6 only)
  • Microsoft Internet Explorer®, Version 9.0 or higher, or Mozilla® Firefox® Version 31 or ESR Version 24 or higher, Chrome 36 or higher. (Note: Chrome 45 or higher does not support Java) (Note: Older browser versions will support Full-text options but not PatentPak)
  • ActiveX®, Java™ and JavaScript™ must be enabled

Additional Software

  • Microsoft Excel® 2003, 2007 or 2010 for the Analyze Plus Wizard or CAS Registry Number® and Role Report Wizard
  • QuickTime 7 for viewing images in STN Express transcripts
  • Adobe Reader for viewing PDF outputs for tables, reports and transcripts