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November 2019

PatentPak(R) now available in USPATFULL/USPAT2 on STNext(R)

November 2019


November 2019

German Patent Full-Text Database DEFULL enhanced

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CA/CAplus pre-1967 chemical substance index entries enhanced with preparation role

15. November 2006

Beginning November 13, 2006, the CAS preparation role (PREP) will be added to nearly 4 million CAS Registry Number index entries in CA/CAplus records from 1907-1966. Simplified retrieval of preparations will be possible from the beginning of CA indexing in 1907 to the present.

Completion of this enhancement is expected within a few weeks.

Additional information on CAS roles is available at:

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