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New on STN

Mai 2013

Effective today, the list of CAS Roles has been streamlined to increase clarity and search efficiency

Mai 2013

Emtree Thesaurus Updated in Embase

April 2013

Embase Alert (EMBAL) Enhanced with Articles-in-Press Content and Optimized for Use as a Companion Database for Embase

More News Messages

Databases in Focus

Chemical Abstracts Plus
(CAplus^SM) and CAS REGISTRY^SM

Derwent World Patents Index (DWPI)

Meet us at

PATINFO - 35. Kolloqium der TU Ilmenau über Patentinformation,Ilmenau, Jun 6.-7.

STN User Meetings

Essen, 28.05.2013
Brussels, 11.06.2013
London, 11.06.2013

News Messages 2009

Derwent WPI: Human translated claims for Chinese Applications and Utility Models	16. Oktober 2009
We are pleased to announce a significant enhancement to the Chinese coverage in DWPI.

Derwent WPI Country Coverage Update: India and Taiwan	16. Oktober 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. Juli 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...

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