Patents by Inventor Graham T. Cheek

Graham T. Cheek 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).

  • Low temperature refining and formation of refractory metals
    Patent number: 7169285
    Abstract: A low temperature method for reducing and purifying refractory metals, metal compounds, and semi-metals using a catalyst. Using this invention, TiO2 can be reduced directly to Ti metal at room temperature. The catalyst is an ion in an electrolyte that catalyzes the rate of the reduction of a compound MX to M, wherein M is a metal or a semi-metal; MX is a metal compound, a semi-metal compound, or a metal or semi-metal dissolved as an impurity in M; and X is an element chemically combined with or dissolved in M.
    Type: Grant
    Filed: June 16, 2004
    Date of Patent: January 30, 2007
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: William E. O'Grady, Graham T. Cheek