Patents by Inventor Leslie P. Theard

Leslie P. Theard 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).

  • Resin-forming homogeneous solutions of styrene, maleic anhydride and copolymers thereof
    Patent number: 3997499
    Abstract: Homogeneous solutions of styrene, maleic anhydride and styrene-maleic anhydride copolymer having a low overall styrene content are prepared. These reactive solutions crosslink with polyfunctional reactants such as diepoxides to form thermoset resins.
    Type: Grant
    Filed: June 26, 1975
    Date of Patent: December 14, 1976
    Assignee: Gulf Oil Corporation
    Inventors: William J. Heilman, Frank C. Peterson, Mical C. Renz, Leslie P. Theard