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New on STN

February 2020

New legal event data from Croatia, Italy, and Poland in INPADOCDB and INPAFAMDB

January 2020

Changes to Derwent WPI Update numbering and the total number of annual DWPI updates

December 2019

Derwent World Patents Index: Manual Code revision 2020

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The 2020 AI-SDV Conference,
20.-21.Apr, Nice
EPO East meets West, 23.-24.Apr, Vienna
PATINFO 2020, 17.-19.Jun, Ilmenau

STN User Meetings

Munich, 20.05.2020

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News Messages 2009

Derwent WPI: Human translated claims for Chinese Applications and Utility Models 16. October 2009

We are pleased to announce a significant enhancement to the Chinese coverage in DWPI.

Derwent WPI Country Coverage Update: India and Taiwan 16. October 2009

The coverage of Taiwan and India will be improved in the coming weeks with the processing of a deeper backfile for TW Utility Models and Indian B patents.

50 Millionth Unique Chemical Substance Recorded in CAS REGISTRY 09. September 2009

CAS, a division of the American Chemical Society, announced that on September 7 it recorded the 50 millionth substance in CAS REGISTRY, the world’s most comprehensive and high-quality compendium of publicly disclosed chemical information. The recently registered substance is a novel...

DWPI - Japanese FTERM thesaurus added 07. September 2009

Japanese Patent Classifications including FTERMs have been added to the DWPI database (files WPINDEX/WPIDS/WPIX) recently. Now a thesaurus is available for easier navigation through the maze of codes. For available relationships see HELp RCO.

CA/CAplus enhanced with legal status information for U.S. patents 24. August 2009

Legal status information for patents from the United States Patent and Trademark Office (USPTO) back to 1980 has been added to the CA/CAplus family of databases. The information is available in records for:

ENCOMPLIT/ENCOMPLIT2 reloaded and enhanced 24. August 2009

EnCompass Literature File (ENCOMPLIT/ENCOMPLIT2) has been reloaded with several enhancements. The databases cover the nonpatent literature of the petroleum refining, petrochemical, natural gas, and energy industries. Enhancements include:

CAS REGISTRY, the Global Standard for Chemical Research, Approaches 50 Millionth Registration Milestone 18. August 2009

CAS, a division of the American Chemical Society, announced today that it is on track to register the 50 millionth unique chemical substance on September 7. The CAS REGISTRY is the most comprehensive and high-quality compendium of publicly disclosed chemical information. This milestone came...

COMPENDEX: Corporate Source (/CS) field has been re-indexed 17. August 2009

Due to customer requests we have re-indexed the /CS field in COMPENDEX. Author names have been removed from the index so that only company names are available for search and select in field CS. The display has not been changed, author names and their associated affiliations are still shown.

Time limit for inactive STN sessions doubles to 40 minutes 10. August 2009

If workplace interruptions are causing you to encounter the 20-minute inactivity disconnect from STN, we have a solution - a longer timeout period before your session is logged off.

CA/CAplus enhanced with new citing references features 28. July 2009

The CA/CAplus family of databases has been enhanced with new, more convenient access to citing references information on STN. Citing references information can be used to track records that cite a specific record in CA/CAplus. New search, display, select, and sort fields: OS Citing References...