Patents by Inventor Sandra Urouhart

Sandra Urouhart 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).

  • Minimization of volatile organic sulphur byproducts in dimethyl sulfate quaternization of amines made with hypophorous acid
    Publication number: 20060189826
    Abstract: The present invention relates to a process for the minimization of volatile organic sulphur byproducts in dimethyl sulfate quaternization of amines made with hypophosphorous acid, which leads to the formation of an odor stable product.
    Type: Application
    Filed: December 23, 2003
    Publication date: August 24, 2006
    Inventors: Elliot Band, Maurice Dery, William Joyce, Jeffrey Telschow, Biing Su, Michael Engel, John Nowak, Claude Peterson, Harold Providence, Phuong-Nga Trinh, Sandra Urouhart