DIFF Subgroup
C09K 15/06 containing oxygen
Introduced: July 1974
Full Title
Full titles differ between systems:
IPC:
Anti-oxidant compositions; Compositions inhibiting chemical change > containing organic compounds > containing oxygen
CPC:
Anti-oxidant compositions; Compositions inhibiting chemical change ( , in foodstuffs A21D, A23, , in macromolecular compositions C08; in liquid fuels or lubricants C10; in fats, fatty substances, fatty oils or waxes C11B5/00; in detergents C11D; ; corrosion inhibiting compositions for metallic material C23F11/00) > containing organic compounds > containing oxygen
IPC and CPC are identically structured here. All 1 subcodes exist in both systems.
IPC defines codes here since 1974.
Child Classifications
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