Patents by Inventor C. Travis Presley

C. Travis Presley 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).

  • Treatment of oil-in-water emulsions
    Patent number: 4182689
    Abstract: Petroleum is separated from an "oil-in-water" emulsion containing water-soluble polymer prior to refining by adding amphoteric metal cations to the emulsion to form a flocculate and then treating the resulting flocculate with a strong base to recover the oil and metal.
    Type: Grant
    Filed: April 7, 1978
    Date of Patent: January 8, 1980
    Assignee: Marathon Oil Company
    Inventors: C. Travis Presley, Rebecca J. Harrison
  • Method of consolidating particles
    Patent number: 4040258
    Abstract: Loose particles are consolidated, e.g., to prevent them from falling into well bores in producing wells, by contacting the loose particles with a solution having a pH above 7 containing water-soluble polymer, e.g., polyvinyl alcohol and hydroxyethyl cellulose, and a polyisocyanurate salt and maintaining said contact for a time sufficient to cause the formation of a consolidating matrix.
    Type: Grant
    Filed: August 16, 1974
    Date of Patent: August 9, 1977
    Assignee: Marathon Oil Company
    Inventors: Perry A. Argabright, C. Travis Presley
  • Polyisocyanurate salt emulsifying agents and derivatives
    Patent number: 4033937
    Abstract: A mixture of molecules containing all of the following groups exhibit surface activity: isocyanurate, metal-substituted isocyanurate, and at least one group selected from the class consisting of a monovalent organic radical selected from the following: isocyanate (--NCO), urethane (--NHCO.sub.2 R'), urea (--NHCONHR'), amino (--NH.sub.2, --NHR', or --NR.sub.2 ').
    Type: Grant
    Filed: February 9, 1972
    Date of Patent: July 5, 1977
    Assignee: Marathon Oil Company
    Inventors: Perry A. Argabright, C. Travis Presley, Charles B. Wenger
  • Polyisocyanurate salt emulsifying agents and derivatives
    Patent number: 4006098
    Abstract: A mixture of molecules containing all of the following groups exhibit surface activity: isocyanurate, metal-substituted isocyanurate, and at least one group selected from the class consisting of a monovalent organic radical selected from the following: isocyanate (--NCO), urethane (--NHCO.sub.2 R'), urea (--NHCONHR'), amino (--NH.sub.2, --NHR', or --NR.sub.2 ').
    Type: Grant
    Filed: September 13, 1974
    Date of Patent: February 1, 1977
    Assignee: Marathon Oil Company
    Inventors: Perry A. Argabright, C. Travis Presley, Charles B. Wenger