Patents by Inventor Donald K. Hadden

Donald K. Hadden 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).

  • Nanofiltration process for making dextrose
    Patent number: 5869297
    Abstract: A nanofilter membrane is used to filter the outflow of a food processing stream which begins with a starch slurry and ends with a glucose syrup which in its preferred form is about 95% dextrose and 5% di- and trisaccharides. The nanofilter membrane is able to pass the dextrose while retaining the di- and trisaccharides. As a result, the invention is able to produce substantially pure dextrose, with purity in a range which is well over 99%.
    Type: Grant
    Filed: June 10, 1992
    Date of Patent: February 9, 1999
    Assignee: Archer Daniels Midland Company
    Inventors: Thomas P. Binder, Donald K. Hadden, Lowell J. Sievers