Patents by Inventor Terence Charles Hughes

Terence Charles Hughes 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).

  • Preparation of fatty hydroxamate
    Patent number: 7049452
    Abstract: A method for preparing fatty hydroxamic acids and salts thereof comprising reacting a fatty acid derivative with an aqueous solution of hydroxylamine.
    Type: Grant
    Filed: January 27, 2003
    Date of Patent: May 23, 2006
    Assignee: Ausmelt Limited
    Inventor: Terence Charles Hughes
  • Hydroxamate composition and method for froth flotation
    Patent number: 7007805
    Abstract: The invention relates to a hydroxamate composition for collection of minerals by froth flotation, the composition including an aqueous mixture of hydroxamate wherein the pH of the composition is at least 11 and a method of collecting mineral values from an aqueous ore slurry by froth flotation.
    Type: Grant
    Filed: January 26, 2004
    Date of Patent: March 7, 2006
    Assignee: Ausmelt Limited
    Inventor: Terence Charles Hughes
  • Hydroxamate composition and method for froth flotation
    Publication number: 20040211933
    Abstract: The invention relates to a hydroxamate composition for collection of minerals by froth flotation, the composition including an aqueous mixture of hydroxamate wherein the pH of the composition is at least 11 and a method of collecting mineral values from an aqueous ore slurry by froth flotation.
    Type: Application
    Filed: January 26, 2004
    Publication date: October 28, 2004
    Inventor: Terence Charles Hughes
  • Preparation of fatty hydroxamate
    Publication number: 20040059156
    Abstract: A method for preparing fatty hydroxamic acids and salts thereof comprising reacting a fatty acid derivative with an aqueous solution of hydroxylamine.
    Type: Application
    Filed: January 27, 2003
    Publication date: March 25, 2004
    Inventor: Terence Charles Hughes
  • Method of extracting fluorine from minerals or mineral species
    Patent number: 5830424
    Abstract: A method of extracting a mineral or mineral species comprising contacting the mineral or mineral species with a leachate solution which contains metal or metalloid ions capable of forming soluble fluoro-complexes of high bond strength with fluorine in the mineral or mineral species.
    Type: Grant
    Filed: May 31, 1996
    Date of Patent: November 3, 1998
    Assignee: The Broken Hill Proprietary Company Limited
    Inventors: Kimitaka Jomoto, Terence Charles Hughes