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DIFF Subgroup
B01J 23/31

combined with bismuth

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

Catalysts comprising metals or metal oxides or hydroxides, not provided for in group > of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium > Chromium, molybdenum or tungsten > combined with bismuth

CPC:

Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 (B01J21/16 takes precedence) > of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium > Chromium, molybdenum or tungsten > combined with bismuth

No child classifications to compare. This is a leaf node in both IPC and CPC.