Patents by Inventor Kevin S. Livingston

Kevin S. Livingston 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).

  • Patent number: 7718064
    Abstract: The invention provides improved methods of wastewater purification. The present invention provides a process for the energy efficient production of Class A biosolids. More particularly, sewage sludge is subjected to an anaerobic digestion process resulting in class A biosolids, whereby methane gas byproducts are utilized to meet the high energy demands associated with Class A biosolid production.
    Type: Grant
    Filed: February 15, 2007
    Date of Patent: May 18, 2010
    Assignee: Hesco Sustainable Energy, LLC
    Inventors: Kevin S. Livingston, Glenn T. Hummel
  • Publication number: 20070193948
    Abstract: The invention provides improved methods of wastewater purification. The present invention provides a process for the energy efficient production of Class A biosolids. More particularly, sewage sludge is subjected to an anaerobic digestion process resulting in class A biosolids, whereby methane gas byproducts are utilized to meet the high energy demands associated with Class A biosolid production.
    Type: Application
    Filed: February 15, 2007
    Publication date: August 23, 2007
    Inventors: Kevin S. Livingston, Glenn T. Hummel