IPC Subgroup
C10G 73/02 Recovery of petroleum waxes from hydrocarbon oils; De-waxing of hydrocarbon oils
Introduced: January 1980
Last revised: January 2006
Full Title
Recovery or refining of mineral waxes, e.g. montan wax > Recovery of petroleum waxes from hydrocarbon oils; De-waxing of hydrocarbon oils
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- Subclass:
- CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
Related Keywords
DEWAXING of hydrocarbon oilsDE-WAXING of hydrocarbon oils
8 direct subcodes
Child Classifications
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- C10G 73/04 with the use of filter aids
- C10G 73/06 with the use of solvents
- C10G 73/24 by formation of adducts
- C10G 73/26 by flotation
- C10G 73/28 by centrifugal force
- C10G 73/3 with electric means
- C10G 73/32 Methods of cooling during de-waxing
- C10G 73/34 Controlling or regulating
Top Applicants
Top 10 applicants by patent filingsfor class C10, 2013–2023, worldwide · Source: EPO PATSTAT
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 8,875
- SAUDI ARABIAN OIL COMPANY SA 2,245
- PETROCHINA COMPANY 2,028
- EXXONMOBIL RESEARCH AND ENGINEERING COMPANY US 1,980
- IFPEN (IFP ENERGIES NOUVELLES) FR 1,963
- SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NL 1,878
- CHINESE ACADEMY OF SCIENCES 1,829
- UNIVERSAL OIL PRODUCTS COMPANY (UOP) US 1,787
- LUBRIZOL CORPORATION US 1,277
- BASF (BADISCHE ANILIN & SODA FABRIK) DE 1,268