Patents by Inventor James Kneller

James Kneller 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).

  • Modified maleic anhydride polymers and the like for use as scale inhibitors
    Patent number: 4919821
    Abstract: Water supplies are treated to inhibit the formation of scale deposits of alkaline earth phosphates, phosphonates, sulphates and carbonates using various hydrocarbon polymers which contain an amido functionality and which have been prepared by post-polymerization derivatization.
    Type: Grant
    Filed: August 31, 1988
    Date of Patent: April 24, 1990
    Assignee: Nalco Chemical Company
    Inventors: Dodd W. Fong, John E. Hoots, Donald A. Johnson, James Kneller