Patents by Inventor Mark Harris Smith

Mark Harris Smith 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 the treatment of mineral slimes
    Patent number: 3932275
    Abstract: A method of dewatering mineral slimes by adding fly ash and then a polyelectrolyte and blending slowly and thoroughly. The clear water supernatant may be drawn off from the sedimented coagulated solids. The coagulated solids may be further dewatered or treated in ecologically beneficial ways.
    Type: Grant
    Filed: August 29, 1974
    Date of Patent: January 13, 1976
    Assignee: AMAX Resource Recovery Systems, Inc.
    Inventors: Arthur Raymond Mewes, Robert W. Styron, Mark Harris Smith