Patents by Inventor Albert J. Dean

Albert J. Dean 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).

  • Preparation of alkali metals
    Patent number: 4139428
    Abstract: The electrolytic production of an alkali metal, such as sodium, from a conventional Downs cell can be reduced by the addition to the fused alkali metal salt electrolyte of small amounts of anhydrous aluminum oxide or magnesium oxide, preferably aluminum oxide. Production can be recovered by the removal of either the aluminum or magnesium metal values from the cell.
    Type: Grant
    Filed: October 31, 1977
    Date of Patent: February 13, 1979
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Albert J. Dean, Francis J. Ross