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New on STN

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

December 2019

New Korean Patent Full-Text Database KRFULL released

STN User Meetings

Munich, 20.05.2020

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CA/CAplus to MARPAT accession number crossover limit increased to 50,000

20. November 2006

The CA/CAplus to MARPAT accession number (AN) crossover limit has increased from 10,000 to 50,000.

The CA/CAplus and MARPAT Database Summary Sheets are available in STNGuide and on the WEB on our Database List.