Product News

Rolled-Up Core Codes Removed from Patent Databases on STN

December  15th,   2011

Rolled-up IPC Core Codes have now been removed from IPC reclassifications (IPCR field) in patent databases on STN to deliver more consistent and streamlined IPC content.

In 2006, the European Patent Office (EPO) introduced Rolled-up Core Codes for each advanced level IPC code in patents. This practice simplified searching across countries by providing a code that spanned assigned IPC codes at both the Advanced level and the Core level. In late 2010, the EPO stopped rolling up Core Codes and removed Rolled-Up Core Codes from the IPC reclassifications supplied quarterly to database producers and vendors.

Rolled-up IPC Core Codes have now been removed from the IPCR fields of the following databases on STN:

CASM/CAplusSM family of databases
EPFULL
FRFULL
GBFULL
INPADOCDB/INPAFAMDB
PATDPAFULL
PCTFULL
USPATFUL/USPAT2/USPATOLD
WPINDEX/WPIDS/WPIX

In the DWPI databases, the rolled-up core codes have been removed from the set of current IPCs only.

Recent News

    May 22, 2017 | Wiley and CAS Announce
    Collaboration to Deliver Advanced Predictive
    Cheminformatics Capabilities to Researchers
    Worldwide

    May 15, 2017 | CAS Powers Research for Charles
    River Laboratories and Top Contract Research
    Organizations Worldwide

    April 10, 2017 | Latest Release of New STN
    Enhances Search History and Expands Database
    Coverage
  
                                                                      More News >> 

 Media Contact

 Name: Rhonda Ross
 Phone: 614-447-3624                                       
 Email: cas-pr@cas.org