Patents by Inventor Leroi E. Hutchings

Leroi E. Hutchings has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Conversion of asphaltene-containing charge stocks
    Patent number: 4364819
    Abstract: A process for the conversion of an asphaltene-containing, hydrocarbonaceous black oil in a catalytic slurry reaction zone wherein an admixture of converted hydrocarbonaceous oil and deasphalter solvent is recycled to the reaction zone.
    Type: Grant
    Filed: April 24, 1981
    Date of Patent: December 21, 1982
    Assignee: UOP Inc.
    Inventors: Leroi E. Hutchings, Algie J. Conner
  • Conversion of asphaltene-containing charge stocks
    Patent number: 4358365
    Abstract: A process for the conversion of an asphaltene-containing, hydrocarbonaceous black oil in a catalytic slurry reaction zone wherein an admixture of converted hydrocarbonaceous oil and unconverted asphaltenes is recycled to the reaction zone.
    Type: Grant
    Filed: April 24, 1981
    Date of Patent: November 9, 1982
    Assignee: UOP Inc.
    Inventors: LeRoi E. Hutchings, Algie J. Conner
  • Process for the conversion of hydrocarbonaceous black oil
    Patent number: 3992285
    Abstract: A process for the conversion of a hydrocarbonaceous black oil, wherein the terminal heating of the black oil before conversion is performed by the admixture of said black oil with a gas comprising steam and having a temperature greater than the hydrocarbon conversion temperature.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: November 16, 1976
    Assignee: Universal Oil Products Company
    Inventor: LeRoi E. Hutchings
  • Hydrocracking process for the maximization of an improved viscosity lube oil
    Patent number: 3992283
    Abstract: A process for hydrocracking petroleum fractions to produce lubricating oils of suitable viscosity index comprising subjecting a petroleum fraction to hydrocracking conditions selected to minimize the formation of non-lube oil fractions in the presence of a first hydrocracking catalyst, fractionating the resulting hydrocracked lube oil stock into a plurality of fractions having different boiling ranges, subjecting a higher boiling fraction to hydrocracking conditions in the presence of a second hydrocracking catalyst and blending the resulting lube oil fractions to produce the lube oil base stocks of the desired viscosity and viscosity index.
    Type: Grant
    Filed: September 23, 1974
    Date of Patent: November 16, 1976
    Assignee: Universal Oil Products Company
    Inventor: LeRoi E. Hutchings
  • Combination process for hydrorefining an asphaltenic hydrocarbonaceous charge stock
    Patent number: 3963604
    Abstract: Hydrorefining of asphaltenic hydrocarbonaceous mixtures utilizing a first catalytic reaction zone for vapor phase refining and a second catalytic reaction zone for liquid phase refining thereby minimizing maldistribution of the feedstock in the reaction zones.
    Type: Grant
    Filed: September 30, 1975
    Date of Patent: June 15, 1976
    Assignee: UOP Inc.
    Inventor: Leroi E. Hutchings