Patents by Inventor Lewis W. Huntoon

Lewis W. Huntoon 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).

  • Beneficiation of ilmenite ore
    Patent number: 4019898
    Abstract: A small amount of sulfate ion is added to the hydrochloric acid leach liquor used to beneficiate ilmenite ore whereby fines or slime formation in the mother liquor is minimized or reduced and the color of the solid beneficiated ilmenite product is lighter.
    Type: Grant
    Filed: April 30, 1976
    Date of Patent: April 26, 1977
    Assignee: Benilite Corporation of America
    Inventors: James H. Chen, Lewis W. Huntoon