Patents by Inventor Frank C. Riddick, Jr.

Frank C. Riddick, Jr. 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).

  • Hydrodesulfurization of oil feedstock with presulfided catalyst
    Patent number: 4213850
    Abstract: Hydrofining catalysts comprising cobalt and/or nickel oxides plus molybdenum and/or tungsten oxides are presulfided with mixed sulfiding agents comprising (1) a liquid phase heavy mineral oil fraction containing native organic sulfur and (2) a gaseous mixture of hydrogen and H.sub.2 S, the contacting being carried out at temperatures sufficiently high to convert some but not more than about 90% of the organic sulfur in the mineral oil fraction to H.sub.2 S.
    Type: Grant
    Filed: June 29, 1978
    Date of Patent: July 22, 1980
    Assignee: Union Oil Company of California
    Inventors: Frank C. Riddick, Jr., Bernal Peralta