Patents by Inventor Henry Erickson, deceased

Henry Erickson, deceased 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).

  • White mineral oil made by two stage hydrogenation
    Patent number: 4251347
    Abstract: A process for preparing white mineral oil from a mineral oil distillate of lubricating viscosity by first contacting the distillate with hydrogen in the presence of sulfur-resistant catalyst to form hydrogenated oil and then second contacting at least a portion of the hydrogenated oil with hydrogen in the presence of a second catalyst to form a refined oil from which white oil is recovered. The second catalyst, which comprises a support, at least one palladium component and at least one halogen component, possess improved catalyst activity.
    Type: Grant
    Filed: August 15, 1979
    Date of Patent: February 17, 1981
    Assignee: Atlantic Richfield Company
    Inventors: Maurice K. Rausch, Henry Erickson, deceased, by Doris Erickson, executor, Gerald E. Tollefsen, Thomas W. Kelly
  • Hydrocarbon conversion process
    Patent number: 3976560
    Abstract: A process for catalytically converting hydrocarbons wherein hydrocarbons are contacted at hydrocarbon conversion conditions with a supported iridium catalyst prepared by the contacting of, for example, an alumina support with a liquid medium containing a compound of iridium while maintaining the iridium-containing liquid medium at a pH of from 3 to 6 with an ammonium hydroxide or lower alkyl amine base.
    Type: Grant
    Filed: February 13, 1975
    Date of Patent: August 24, 1976
    Assignee: Atlantic Richfield Company
    Inventors: Henry Erickson, deceased, by Doris Erickson, executor