CPC Subgroup
C01B 32/25 Diamond
Full Title
Carbon; Compounds thereof (C01B21/00, C01B23/00 take precedence; percarbonates C01B15/10; carbon black C09C1/48) > Diamond
2 direct subcodes
Child Classifications
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- C01B 32/26 Preparation (by using ultra-high pressure B01J3/06; by crystal growth C30B29/04)
- C01B 32/28 After-treatment, e.g. purification, irradiation, separation or recovery