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DIFF Subgroup
C10G 21/14

Hydrocarbons

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents > characterised by the solvent used > Organic compounds only > Hydrocarbons

CPC:

Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents (C10G17/00, C10G19/00 take precedence) > characterised by the solvent used > Organic compounds only > Hydrocarbons

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