Patents by Inventor Wendall R. Conard

Wendall R. Conard 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).

  • Stabilization of elastomers with aliphatic-phenyl diamines and aliphatic phosphite compounds
    Patent number: 4559378
    Abstract: Elastomers such as guayule rubber is stabilized by the addition of an alkyl, cycloalkyl or alkyl substituted cycloalkyl phenyl-phenylenediamine compound with an alkyl, cycloalkyl or alkyl substituted cycloalkyl phosphite compound which, in combination, yield an unexpectant and synergistic result.
    Type: Grant
    Filed: August 30, 1984
    Date of Patent: December 17, 1985
    Assignee: The Firestone Tire & Rubber Company
    Inventors: Edward L. Kay, Richard Gutierrez, Wendall R. Conard