Patents by Inventor Marcel Steurs

Marcel Steurs 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).

  • Multilayer tire sidewall
    Patent number: 5376438
    Abstract: The invention is a multilayer tire sidewall having an outer layer prepared from a blend of isomonoolefin/para-alkylstyrene copolymer and general purpose rubbers. The inner layer comprises general purpose rubber. The resulting sidewall exhibit good ozone resistance and fatigue crack resistance as well as a reduction in staining and discloration.
    Type: Grant
    Filed: February 8, 1993
    Date of Patent: December 27, 1994
    Assignee: Exxon Chemical Patents Inc.
    Inventors: Bernard Costemalle, Douglas D. Flowers, James V. Fusco, Marcel Steurs