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File Name: CAplus (the file is available through the search system STN)
Company Name: Chemical Abstracts Service (CAS)
Length of Service: The Chemical Abstracts Service has been indexing chemistry-related publications since 1907; the Registry service was placed online (CAS ONLINE) in an early version in 1980.
Target User: Professional searcher in the chemical arts needing to perform a targeted search in chemical literature, possibly by structure searching via the CAS REGISTRY file and crossing results over into this specially indexed file.
Subscription type: Both flat fee subscriptions and pay-as-you-go pricing are available; however, the availability of flat fee subscriptions is limited to certain user groups.
Associated Data Analysis Tool: STN Anavist, STN Viewer
CAplus is a collection of records produced by the Chemical Abstracts Service (CAS). Like the Derwent World Patents Index, these records actually consist of re-written abstracts and special indexing content created by a staff of experts.
CAplus uses its own set of rules to organize patent documents into patent families. For more information on the patent families in CAplus, see the Patent Families glossary article.
Major Recent Updates
In July 2010, CAS announced that it will begin indexing Costa Rican (CR) patent documents. In addition, this update will expand the kinds of Argentinian (AR) patent documents that are treated with CAS indexing.
Costa Rican coverage will include published applications and utility models.
Coverage of Argentinian documents will include the following kind codes:
- A1 (patent applications)
- A2 (divisional patent application)
- A3 (additional patent application)
- A4 (independent utility model application)
- A6 (additional utility model application)
Read more at the "Database News for July 2010" update from CAS.