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New on STN

September 2018

Third Emtree(R) Thesaurus Update Now Available in Embase

May 2018

STN(R) Reflects Second Update to Emtree(R) Thesaurus for 2018

April 2018

CCI Now Searchable in CAS REGISTRY(SM)

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DWPI: US National Patent Classification thesaurus added

22. March 2010

US National Patent Classifications are being added to the DWPI database (files WPINDEX/WPIDS/WPIX) for some time already. Now a thesaurus is being made available to make navigating through the maze of codes easier. For available relationships see HELp RCO.

For further particulars please refer to our Help Desk.