IPC Main Group
C01B 13/00 Oxygen; Ozone; Oxides or hydroxides in general
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- INORGANIC CHEMISTRY
- Subclass:
- NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
Related Keywords
OXYGEN
3 direct subcodes
Child Classifications
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- C01B 13/02 Preparation of oxygen
- C01B 13/1 Preparation of ozone
- C01B 13/14 Methods for preparing oxides or hydroxides in general