Patents Represented by Attorney Richard C. Stewart, Jr.

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  • Process for the preparation of conductive polymer blends
    Patent number: 5254633
    Abstract: This invention relates to a process for forming polyaniline films or coatings on a substrate and to composite articles formed by said process.
    Type: Grant
    Filed: July 10, 1991
    Date of Patent: October 19, 1993
    Assignee: Allied Signal Inc.
    Inventors: Chien-Chung Han, Ronald L. Elsenbaumer
  • Process for preparing graft and block copolymers of polyphenylene oxides and polyesters and copolymers prepared by said process
    Patent number: 5219937
    Abstract: A process of forming block and/or graft copolymers of a polyester and a polyphenylene oxide which comprises heating a mixture of the polyester and the polyphenylene oxide in the presence of a phosphite compound.
    Type: Grant
    Filed: June 15, 1992
    Date of Patent: June 15, 1993
    Assignee: AlliedSignal Inc.
    Inventors: Reginald T-H. Tang, Michael C. Bochnik, Frank Mares, Steve Arnold