Patents by Inventor Daniel Laforest

Daniel Laforest 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).

  • Use of microwave radiation to eliminate foam in ore leaching
    Patent number: 5091160
    Abstract: A method of eliminating the foam above a slurry of a corrosive liquid and solid matter where the foam is caused by a gas evolved by the reaction between the heated corrosive liquid and the solid matter comprising providing the heating energy by microwaves. This method has been found to be particularly useful in the sulphuric acid leaching of an ore concentrate in the production of beryllium hydroxide.
    Type: Grant
    Filed: November 5, 1990
    Date of Patent: February 25, 1992
    Assignee: Her Majesty the Queen in right of Canada, as represented by the Minister of Energy
    Inventors: Peter D. Kondos, Kazi E. Haque, John C. MacDonald, Wesley F. Griffith, Daniel Laforest, Joe Iuliano