How can the IPC Reform IPCs codes be searched and displayed ?
At the Invention Level the current IPC Reform IPCs for the patent family are displayed in the fields IPCI and ICPR based on the source level attribute. IPCI contains IPCs with a source level attribute of “B” indicating “Original” and IPCR contains IPCs with a source level attribute of “R” indicating “Reclassification”. Note: on STN the “B” attribute has been indexed as “O” within the IPC Reform keywords field (IPC.KW) to indicate “Original” to avoid confusion with the “Basic” concept within patent families. At the Member Patent Level the current and original IPC Reform IPCs for each constituent member patent will again be displayed in fields IPCI and IPCR according to the level attribute. IPCI and IPCR are display fields only. The /IPC index contains all IPCs irrespective of their status (e.g. Invention and Member Patent Levels, original and current, IPC Reform and IPC 1-7). It is also possible to selectively search IPC Reform IPCs using the IPC.REF index. However this must be combined
