CPC Subgroup
C10G 27/04 with oxygen or compounds generating oxygen
Full Title
Refining of hydrocarbon oils in the absence of hydrogen, by oxidation > with oxygen or compounds generating oxygen
5 direct subcodes
Child Classifications
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- C10G 27/06 in the presence of alkaline solutions
- C10G 27/08 in the presence of copper chloride
- C10G 27/10 in the presence of metal-containing organic complexes, e.g. chelates, or cationic ion-exchange resins
- C10G 27/12 with oxygen-generating compounds, e.g. per-compounds, chromic acid, chromates (plumbites or plumbates C10G19/06)
- C10G 27/14 with ozone-containing gases
Top Applicants
Top 10 applicants by patent filingsfor class C10, 2013–2023, worldwide · Source: EPO PATSTAT
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 5,831
- SAUDI ARABIAN OIL COMPANY SA 2,918
- IFPEN (IFP ENERGIES NOUVELLES) FR 2,305
- EXXONMOBIL RESEARCH AND ENGINEERING COMPANY US 2,282
- UNIVERSAL OIL PRODUCTS COMPANY (UOP) US 2,268
- SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NL 2,124
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,487
- CHEVRON CORPORATION US 1,400
- PETROCHINA COMPANY 1,372
- LUBRIZOL CORPORATION US 1,324