Patents by Inventor David Mack Duncan

David Mack Duncan 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).

  • Process for the enhancement of recovery of sugar
    Patent number: 5928429
    Abstract: This invention relates to the coprocessing of raw sugar and molasses ion exclusion product, optionally with added sugar beet diffusion juice, to enhance the recovery of sugar. In a preferred method, raw cane sugar is melted in limed water, prior to its addition to ion excluded juice.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: July 27, 1999
    Assignee: Imperial Holly Corporation
    Inventors: David Mack Duncan, Gene Richard Allen