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DIFF Subgroup
B01J 29/52

containing iron group metals, noble metals or copper

Introduced: January 1995

Full Title

Full titles differ between systems:

IPC:

Catalysts comprising molecular sieves > having base-exchange properties, e.g. crystalline zeolites, pillared clays > Crystalline aluminosilicate zeolites; Isomorphous compounds thereof > of the erionite or offretite type, e.g. zeolite T > containing iron group metals, noble metals or copper

CPC:

Catalysts comprising molecular sieves > having base-exchange properties, e.g. crystalline zeolites > Crystalline aluminosilicate zeolites; Isomorphous compounds thereof > of the erionite or offretite type, e.g. zeolite T, as exemplified by patent document US2950952 > containing iron group metals, noble metals or copper

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

IPC defines codes here since 1995.

Child Classifications

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  • B01J 29/54 Noble metals since 1995 IPC+CPC Available in IPC and CPC
  • B01J 29/56 Iron group metals or copper since 1995 IPC+CPC Available in IPC and CPC