Patents by Inventor Herman E. Seymus

Herman E. Seymus 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).

  • Coating composition of poly(arylene sulfide), polytetrafluoroethylene and barium or calcium sulfate
    Patent number: 4443574
    Abstract: Coating compositions of poly(arylene sulfide) and polytetrafluoroethylene have enhanced adhesion to substrates when they include barium or calcium sulfate, especially for coil coating use on cookware.
    Type: Grant
    Filed: November 19, 1982
    Date of Patent: April 17, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Jean-Louis G. Coq, Herman E. Seymus