by organic substances

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form > Treatment of tobacco products or tobacco substitutes > by chemical substances > by organic substances

CPC:

Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form (A24B3/00 takes precedence) > Treatment of tobacco products or tobacco substitutes > by chemical substances > by organic substances

CPC subdivides this area 2x more granularly than IPC with 4 additional codes.

4 codes are CPC-only extensions.

IPC defines codes here since 1980.

Child Classifications

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A24B 15/301 CPC only CPC only
A24B 15/302 +1 CPC CPC only CPC only
A24B 15/305 +2 CPC CPC only CPC only
A24B 15/308 CPC only CPC only
A24B 15/32 by acyclic compounds since 1980 IPC+CPC Available in IPC and CPC
A24B 15/34 containing a carbocyclic ring other than a six-membered aromatic ring since 1980 +1 CPC IPC+CPC Available in IPC and CPC
A24B 15/36 containing a heterocyclic ring since 1980 +1 CPC IPC+CPC Available in IPC and CPC