Patents by Inventor Thomas L. Maddox

Thomas L. Maddox 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).

  • On-board water treatment and management process and apparatus
    Patent number: 7595003
    Abstract: A contactor apparatus is provided to treat ballast water that has exited a ballast tank before being expelled from a water-borne ship. Within the contactor apparatus, means are provided for supplying a combination of acoustic energy and dissolved ozone. The acoustic energy can be provided at two or more frequencies (e.g., at 16 and 20 kHz). The acoustic energy and dissolved ozone, together, offer a more-effective and more-efficient mode of disinfecting the ballast water before release.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: September 29, 2009
    Assignee: Environmental Technologies, Inc.
    Inventor: Thomas L. Maddox