Patents by Inventor John R. Friday

John R. Friday 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).

  • Upgrading of high boiling hydrocarbons
    Patent number: 4686028
    Abstract: A feed is subjected to deasphalting to separately recover oil, resin and pitch. The resin fraction is upgraded to valuable product, for example, by hydrogenation or visbreaking, and heavier components from the upgrading are recycled to the deasphalting for removing pitchlike components prior to being recycled to the upgrading step.
    Type: Grant
    Filed: April 5, 1985
    Date of Patent: August 11, 1987
    Inventors: Roger P. Van Driesen, John R. Friday
  • Process for producing premium coke from vacuum residuum
    Patent number: 4178229
    Abstract: Low value heavy hydrocarbonaceous material such as a petroleum refinery vacuum residuum is converted to distillate products and pitch in a hydrogen donor diluent cracking process, and the pitch is utilized as feedstock to a delayed premium coker.
    Type: Grant
    Filed: May 22, 1978
    Date of Patent: December 11, 1979
    Assignee: Conoco, Inc.
    Inventors: James R. McConaghy, Paul C. Poynor, John R. Friday