Patents by Inventor J. Michael Randolph

J. Michael Randolph 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).

  • Process for beneficiation of mixtures of mineral particles
    Patent number: 6200377
    Abstract: An improved process for the beneficiation of mixtures of mineral particles (such as kaolin clays) containing minerals which chelate with hydroxamates. The use of a silicon-containing compound in combination with a hydroxamate results in a more effective separation of minerals which chelate with the hydroxamate.
    Type: Grant
    Filed: April 16, 1999
    Date of Patent: March 13, 2001
    Assignee: Thiele Kaolin Company
    Inventors: Cesar I. Basilio, J. Michael Randolph