Patents by Inventor Corbett J. Poynton

Corbett J. Poynton 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 treating zircon
    Patent number: 4395384
    Abstract: A process for the treating of zircon to remove a coating which contains iron from the surface of individual grains to make them move amenable to electrostatic and magnetic separation, wherein the method comprises coating the zircon grains with a strong basic reagent, calcining the coated grains and treating the calcined grains to remove the calcined impurities.
    Type: Grant
    Filed: April 6, 1982
    Date of Patent: July 26, 1983
    Assignee: Allied Eneabba Limited
    Inventor: Corbett J. Poynton