Patents by Inventor Eric J. Dlugosz

Eric J. Dlugosz 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).

  • Method of treating water
    Patent number: 4997571
    Abstract: A method of treating and removing volatile organic contaminants from ground water by treating the water with effective amounts of a water-soluble polymeric sequesterant comprising polymers derived from acrylic acid or organic acid, followed by the addition of a biocide, e.g., chlorine, and then subsequently passing the treated water through a packed column or air stripper wherein the volatile organic contaminants are removed by passing air in a counter-direction to the flow of water at temperatures ranging from about 40.degree. to about 200.degree. F.
    Type: Grant
    Filed: January 5, 1990
    Date of Patent: March 5, 1991
    Assignee: Mogul Corporation
    Inventors: L. Fred Roensch, Hershel Zamechek, Kelvin Y. Chang, Eric J. Dlugosz