Patents by Inventor Steven K. Gilman

Steven K. Gilman 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 removal of from oxide coatings iron zirconiferous material
    Patent number: 5637281
    Abstract: A process is disclosed for the removal of iron oxide coatings from zirconiferous material including a first step of heat treating the zirconiferous material at a temperature, not greater than 450.degree. C. and for a period sufficient to activate the coatings for enhanced ease of removal. The product of the first step is thereafter subjected to a leach and/or attritioning treatment.
    Type: Grant
    Filed: March 3, 1995
    Date of Patent: June 10, 1997
    Assignee: RGC Mineral Sands, Ltd.
    Inventors: Keith P. Mayes, Douglas W. Selby, Steven K. Gilman