Patents by Inventor Robert Valentine Kasowski

Robert Valentine Kasowski 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).

  • Poly(p-phenylene terephthalamide) articles of high flame strength
    Patent number: 5674612
    Abstract: Articles made from poly(p-phenylene terephthalamide) polymer having an inherent viscosity of 1.5 to 4 dL/g, 5 to 20 mols of sulfur, as sulfonate, per 100 mols of polymer repeat units, and at least 0.5 weight percent of tungsten oxides or molybdenum oxides; and the process for making such articles.
    Type: Grant
    Filed: November 22, 1996
    Date of Patent: October 7, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Hamid Moayed Ghorashi, Robert Valentine Kasowski