Patents by Inventor Mark D Pritzker

Mark D Pritzker 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).

  • Water treatment system
    Patent number: 5868941
    Abstract: Treatment of halogenated hydrocarbon contaminants in groundwater is accomplished by passing the water through a bed of granular iron (43). An electrical circuit (47) is promoted for providing electrons for reducing the contaminant. The circuit may be made using a DC supply, by configuring an electrolytic circuit, or by providing a layer of a second metal such as zinc placed next to the iron bed, thereby creating a galvenic circuit.
    Type: Grant
    Filed: October 18, 1996
    Date of Patent: February 9, 1999
    Assignee: University of Waterloo
    Inventors: Robert W Gillham, Robert M Focht, Pascale M Bonin, Mark D Pritzker