CPC Subgroup
C10B 47/02 with stationary charge
Full Title
Destructive distillation of solid carbonaceous materials with indirect heating, e.g. by external combustion > with stationary charge
7 direct subcodes
Child Classifications
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- C10B 47/04 in shaft furnaces
- C10B 47/06 in retorts
- C10B 47/08 in beehive ovens
- C10B 47/10 in coke ovens of the chamber type
- C10B 47/12 in which the charge is subjected to mechanical pressures during coking
- C10B 47/14 with the aid of hot liquids, e.g. molten salts
- C10B 47/16 with indirect heating means both inside and outside the retorts
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