B01J 29/70 of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
Introduced: January 1995
Title
Titles differ between systems:
IPC: of types characterised by their specific structure not provided for in groups
CPC: of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
Full Title
Full titles differ between systems:
Catalysts comprising molecular sieves > having base-exchange properties, e.g. crystalline zeolites, pillared clays > Crystalline aluminosilicate zeolites; Isomorphous compounds thereof > of types characterised by their specific structure not provided for in groups
Catalysts comprising molecular sieves > having base-exchange properties, e.g. crystalline zeolites > Crystalline aluminosilicate zeolites; Isomorphous compounds thereof > of types characterised by their specific structure not provided for in groups B01J29/08 - B01J29/65
CPC subdivides this area 8x more granularly than IPC with 13 additional codes.
13 codes are CPC-only extensions.
IPC defines codes here since 1995.
Child Classifications
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- B01J 29/72 containing iron group metals, noble metals or copper since 1995 +12 CPC IPC+CPC Available in IPC and CPC
- B01J 29/78 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium since 1995 +12 CPC IPC+CPC Available in IPC and CPC