Oxygen; Ozone; Oxides or hydroxides in general

Introduced: September 1968

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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C01B 13/02 Preparation of oxygen (by liquefying F25J) +5 CPC IPC+CPC Available in IPC and CPC
C01B 13/10 Preparation of ozone IPC+CPC Available in IPC and CPC
C01B 13/14 Methods for preparing oxides or hydroxides in general (particular individual oxides or hydroxides, see the relevant groups of subclasses C01B - C01G or C25B, according to the element combined with the oxygen or hydroxy group) +1 CPC IPC+CPC Available in IPC and CPC