Patents by Inventor D. Kent Hadden

D. Kent 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).

  • Process for the recovery of organic acids and ammonia from their salts
    Patent number: 5814498
    Abstract: A process recovers organic acid and ammonia from their salts preferably obtained from microbial fermentation of a saccharide in a nutrient. The fermented materials is passed through a nanofiltration or a chelating resin ion-exchange bed or a combination of both a nanofilter and a chelating resin ion-exchange bed in order to reduce divalent or multivalent metal contaminants. Then, the filtered material is processed in a multi compartment electrodialysis containing bipolar and anion membranes.
    Type: Grant
    Filed: April 29, 1996
    Date of Patent: September 29, 1998
    Assignee: Archer Daniels Midland Company
    Inventors: K. N. Mani, D. Kent Hadden