Patents by Inventor Marshall Leffew

Marshall Leffew 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).

  • Publication number: 20100065511
    Abstract: A method of operating a capacitive deionization cell using a regeneration cycle to increase pure flow rate and efficiency of the cell.
    Type: Application
    Filed: September 11, 2009
    Publication date: March 18, 2010
    Inventors: Sean Knapp, Marshall Leffew