containing at least two hetero rings condensed among themselves or condensed with a common carbocyclic ring system, e.g. rifamycin

Introduced: January 1980

Full Title

Full titles differ between systems:

IPC:

Preparation of heterocyclic carbon compounds with only O, N, S, Se, or Te as ring hetero atoms > containing at least two hetero rings condensed among themselves or condensed with a common carbocyclic ring system, e.g. rifamycin

CPC:

Preparation of heterocyclic carbon compounds with only O, N, S, Se or Te as ring hetero atoms (C12P13/04 - C12P13/24 take precedence) > containing at least two hetero rings condensed among themselves or condensed with a common carbocyclic ring system, e.g. rifamycin

Of 4 combined children, 0 exist in both systems.

4 codes are CPC-only extensions.

Child Classifications

Navigate with arrow keys, Enter to open

C12P 17/181 CPC only CPC only
C12P 17/182 +2 CPC CPC only CPC only
C12P 17/185 +2 CPC CPC only CPC only
C12P 17/188 +1 CPC CPC only CPC only