Patents by Inventor Steven William Summers

Steven William Summers 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).

  • Method of extracting gallium
    Patent number: 3932230
    Abstract: A method of removing gallium from tin, lead or tin-lead alloy in which the molten metal containing gallium is treated with a molten flux of alkali metal hydroxide, alkali metal carbonate or a mixture of such constituents where the alkali metal is lithium, sodium, potassium or a mixture of these. Preferably the metal and flux are stirred together, then separated, and the flux dissolved in water and gallium recovered from the solution by electrolysis.
    Type: Grant
    Filed: July 19, 1974
    Date of Patent: January 13, 1976
    Assignee: The British Aluminium Company Limited
    Inventor: Steven William Summers