Patents by Inventor Ralph Cheek

Ralph 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).

  • Metal recovery from salt cake and other compositions
    Patent number: 5901910
    Abstract: A method for recovering aluminum metal from varied size clumps of salt cake. The salt cake clumps have varied concentrations of aluminum metal.
    Type: Grant
    Filed: February 7, 1997
    Date of Patent: May 11, 1999
    Assignee: IMCO Recycling, Inc.
    Inventors: Philip Grosso, Ralph Cheek, Robert L. Hargis