Patents by Inventor Gregor H. Riesser

Gregor H. Riesser 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).

  • Dehydrogenation catalyst
    Patent number: 4152300
    Abstract: Addition of small amounts of oxidic compounds of aluminum, cadmium, magnesium, manganese, nickel, uranium, and the rare earths to iron-potassium-vanadium oxide catalysts useful in the dehydrogenation of hydrocarbons to the corresponding more unsaturated hydrocarbons results in an improved catalyst.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: May 1, 1979
    Assignee: Shell Oil Company
    Inventor: Gregor H. Riesser
  • Dehydrogenation catalyst
    Patent number: 4144197
    Abstract: Addition of oxidic compounds of molybdenum and/or tungsten, cerium and optionally cobalt and/or chromium to iron-potassium-vanadium oxide catalysts useful in the dehydrogenation of hydrocarbons to the corresponding more unsaturated hydrocarbons results in an improved catalyst.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: March 13, 1979
    Assignee: Shell Oil Company
    Inventor: Gregor H. Riesser
  • Dehydrogenation process
    Patent number: 4143083
    Abstract: In the process for effecting a continuous dehydrogenation of hydrocarbons to more unsaturated hydocarbons, particularly alkyl aromatic hydrocarbon to more unsaturated alkyl aromatic hydrocarbons, the improvement which comprises effecting the dehydrogenation with a catalyst comprising a mixture of iron oxide, potassium oxide, carbonate or mixtures thereof, vanadium oxide, optionally chromium oxide and an oxide selected from the group consisting of an oxide of aluminum, cadmium, magnesium, manganese, nickel, a member of the rare earth series, uranium and mixtures thereof.
    Type: Grant
    Filed: April 24, 1978
    Date of Patent: March 6, 1979
    Assignee: Shell Oil Company
    Inventor: Gregor H. Riesser
  • Catalyst for dehydrogenation
    Patent number: 4098723
    Abstract: Iron-potassium-vanadium-cobalt oxide catalysts are useful in the dehydrogenation of hydrocarbons to the corresponding more-unsaturated hydrocarbons and result in an improved yield.
    Type: Grant
    Filed: January 27, 1977
    Date of Patent: July 4, 1978
    Assignee: Shell Oil Company
    Inventor: Gregor H. Riesser
  • Dehydrogenation catalyst
    Patent number: 4052338
    Abstract: Addition of small amounts of cobalt compounds to iron-chromium-potassium-vanadium oxide catalysts useful in the dehydrogenation of hydrocarbons to the corresponding more-unsaturated hydrocarbons results in an improved yield.
    Type: Grant
    Filed: November 8, 1976
    Date of Patent: October 4, 1977
    Assignee: Shell Oil Company
    Inventor: Gregor H. Riesser