Chemical Abstracts Service (CAS) has introduced a number of enhancements in the CA and CAplus databases on STN, including additional content and features for more effective patent searching with IPC codes. IPC-related improvements in CA/CAplus databases include the implementation of all available IPC classifications in patents in the CA/CAplus databases from the Canadian, European, French, German, Japanese, Russian, UK, US and WIPO patent offices. Also included is IPC information for many patent family members in CA/CAplus, increasing retrieval options, along with the addition of rolled-up core codes, which relate more specific advanced codes to the high-level core codes, thus facilitating the retrieval of patent records issued across all patent offices, regardless of which level of IPC codes the offices apply.
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