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Class Information
Number: 208/120
Name: Mineral oils: processes and products >
Description:

Sub-classes under this class:

Class Number	Class Name	Patents
208/1	Synthetic drying oils	0
208/12	Colorng treatments (includes fluorescence)	31
208/13	Treatment of refining sludge	113
208/14	Products and compositions	168
208/177	Refining	141
208/2	Phenolic or toxic oils	8
208/24	Paraffin wax; treatment or recovery	47
208/3	Oxidation of mineral oils	44
208/308	Fractionation	78
208/370	Miscellaneous	70
208/39	Asphalts, tars, pitches and resins; making, treating and recovery	258
208/390	Tar sand treatment with liquid	203
208/400	By treatment of solid mineral, e.g., coal liquefaction, etc.	97
208/46	Chemical conversion of hydrocarbons	261
208/950	Processing of "fischer-tropsch" crude	134
208/951	Solid feed treatment with a gas other than air, hydrogen or steam	93
208/952	Solid feed treatment under supercritical conditions	56
208/DIG.1	Automatic control	213
208/DIG.2	Molecular sieve	31