Patents by Inventor Darrel W. Walker

Darrel W. Walker 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).

  • Patent number: 4167532
    Abstract: Hydrocarbon feedstocks are dehydrogenated to compounds having the same number of carbon atoms and a higher degree of unsaturation by contacting the feedstock in the vapor phase in the presence of molecular oxygen with a catalyst consisting essentially of nickel, lead, phosphorus and combined oxygen, and optionally, an alkali metal. Representative of such conversions is the oxidative dehydrogenation of butane to butenes and butadiene.
    Type: Grant
    Filed: September 29, 1975
    Date of Patent: September 11, 1979
    Assignee: Phillips Petroleum Co.
    Inventors: Darrel W. Walker, Robert J. Hogan, Floyd Farha, Jr.