IPC Main Group
C01G 51/00 Compounds of cobalt
Introduced: September 1968
Last revised: January 2025
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- INORGANIC CHEMISTRY
- Subclass:
- COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES OR
Related Keywords
inorganic compounds of COBALT
11 direct subcodes
Child Classifications
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- C01G 51/01 Preparation or separation involving a liquid-liquid extraction, an adsorption or an ion-exchange
- C01G 51/02 Carbonyls
- C01G 51/04 Oxides
- C01G 51/05 Hydroxides; Oxyhydroxides
- C01G 51/06 Carbonates
- C01G 51/08 Halides; Oxyhalides
- C01G 51/1 Sulfates
- C01G 51/15 Sulfides; Oxysulfides
- C01G 51/2 Complexes with ammonia
- C01G 51/4 Complex oxides containing cobalt and at least one other metal element
- C01G 51/8 Compounds containing cobalt, with or without oxygen or hydrogen, and containing one or more other elements
Top Applicants
Top 10 applicants by patent filingsfor class C01, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 5,794
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 3,286
- LG CHEM KR 2,689
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,669
- CENTRAL SOUTH UNIVERSITY 1,531
- KMUST (KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY) 1,252
- SUMITOMO METAL MINING COMPANY JP 1,073
- ZHEJIANG UNIVERSITY 1,061
- PANASONIC INTELLECTUAL PROPERTY JP 1,058
- PANASONIC INTELLECTUAL PROPERTY 1,038