Patents by Inventor Quentin E. Thompson

Quentin E. Thompson 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).

  • Heat transfer fluids
    Patent number: 5075022
    Abstract: A heat transfer fluid which maintains a low hydrogen permeation rate at temperatures of 350.degree.-400.degree. c. or higher and its pumpability at temperatures of -10.degree. C. or lower is provided. The fluid is especially useful in solar energy collection applications. A method of reducing fluid impurities from polyphenyls is also disclosed.
    Type: Grant
    Filed: October 12, 1989
    Date of Patent: December 24, 1991
    Assignee: Monsanto Company
    Inventors: James W. Gambell, John F. Herber, Quentin E. Thompson
  • Method for inhibiting growth of food poisoning organisms
    Patent number: 4388321
    Abstract: Certain furanones are shown to inhibit growth of food poisoning organisms in laboratory culture media.
    Type: Grant
    Filed: August 6, 1981
    Date of Patent: June 14, 1983
    Assignee: Monsanto Company
    Inventors: Michael C. Robach, Quentin E. Thompson
  • Hydraulic pressure device utilizing biodegradable halogenated diphenyl methanes
    Patent number: 4260506
    Abstract: Biodegradable functional fluids useful as dielectric fluids, heat transfer fluids, hydraulic fluids, plasticizers or dye solvents comprise at least one halogenated diphenylmethane compound represented by the structure ##STR1## where each X is individually chlorine, bromine or fluorine; n is a whole number from 1 to 4; each R is individually an alkyl group having from 1 to 5 carbon atoms; and m is zero or a whole number from 1 to 3.
    Type: Grant
    Filed: January 26, 1979
    Date of Patent: April 7, 1981
    Assignee: Monsanto Company
    Inventors: Ralph H. Munch, Quentin E. Thompson
  • Dye solvents for pressure-sensitive record material
    Patent number: 3968320
    Abstract: Benzyl aryl ethers are useful solvents for chromogenic materials in preparing pressure-sensitive record material wherein a colorless or substantially colorless chromogen is reacted in the presence of a benzyl aryl ether solvent with an acidic sensitizing material to form a colored mark in a pattern determined by the application of localized pressure to the record material. The benzyl aryl ether solvents are heat stable and give particularly fast color development on phenolic resin coated papers.
    Type: Grant
    Filed: August 30, 1973
    Date of Patent: July 6, 1976
    Assignee: Monsanto Company
    Inventors: John F. Herber, James K. Sears, Quentin E. Thompson