Patents by Inventor Leonie J. Hughes

Leonie J. Hughes 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).

  • Biological nitrogen removal
    Patent number: 8216472
    Abstract: The present invention relates to a method of treating a liquid to extract at least one of carbon, sulphur, nitrogen or phosphate from liquids such as waste water. Preferably, the invention is employed to remove nitrogen from waste water. In an alternate for the invention provides a wastewater treatment system.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: July 10, 2012
    Assignee: Murdoch University
    Inventors: Ralf Cord-Ruwisch, Leonie J. Hughes