CPC Main Group
C01G 51/00 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 51/10 Sulfates
- C01G 51/15 Sulfides; Oxysulfides
- C01G 51/20 Complexes with ammonia
- C01G 51/40 Complex oxides containing cobalt and at least one other metal element
- C01G 51/80 Compounds containing cobalt, with or without oxygen or hydrogen, and containing one or more other elements (C01G51/02, C01G51/06 - C01G51/40 take precedence)
Top Applicants
Top 10 applicants by patent filingsfor class C01, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 4,293
- LG CHEM KR 3,317
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 2,219
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 2,154
- OMYA INTERNATIONAL CH 1,524
- PANASONIC INTELLECTUAL PROPERTY JP 1,362
- SAUDI ARABIAN OIL COMPANY SA 1,298
- SUMITOMO METAL MINING COMPANY JP 1,286
- CENTRAL SOUTH UNIVERSITY 1,243
- L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE FR 1,238