Patents by Inventor Ed D. Davis

Ed D. Davis 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).

  • Crude oil refining apparatus
    Patent number: 4713221
    Abstract: In a crude oil refining apparatus, heavy cycle oil from the catalytic cracking unit employed in the crude oil refining apparatus is recycled to a hydrofining process. Such recycling improves the value of the product mix obtained from the crude oil refining apparatus with respect to an apparatus in which the heavy cycle oil withdrawn from the catalytic cracking units is recycled to the catalytic cracking units.
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: December 15, 1987
    Assignee: Phillips Petroleum Company
    Inventors: Dean P. Montgomery, James W. Gall, Ed D. Davis
  • Crude oil refining
    Patent number: 4565620
    Abstract: In a crude oil refining process, heavy cycle oil from the catalytic cracking unit employed in the crude oil refining process is recycled to a hydrofining process. Such recycling improves the value of the product mix obtained from the crude oil refining process with respect to a process in which the heavy cycle oil withdrawn from the catalytic cracking units is recycled to the catalytic cracking units.
    Type: Grant
    Filed: May 25, 1984
    Date of Patent: January 21, 1986
    Assignee: Phillips Petroleum Company
    Inventors: Dean P. Montgomery, James W. Gall, Ed D. Davis