Patents by Inventor Robert M. Bishop

Robert M. Bishop 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).

  • Dielectric films from water soluble polyimides
    Patent number: 4418190
    Abstract: A dielectric film with improved dielectric strength, mechanical strength, high temperature utility, and moisture resistance is described comprising the reaction product of 1, 2, 3, 4 butane tetracarboxylic acid, a multifunctional amine of the formula: ##STR1## and at least one diamine, the multifunctional amine constituting at least 5% of the total amine equivalents of the reactants. The polyimide dielectric film can be cast out of aqueous solution on a mold release surface.
    Type: Grant
    Filed: April 9, 1982
    Date of Patent: November 29, 1983
    Assignee: Essex Group, Inc.
    Inventors: Robert M. Bishop, Lionel J. Payette, Roscoe A. Pike
  • Container insert
    Patent number: D291172
    Type: Grant
    Filed: October 19, 1984
    Date of Patent: August 4, 1987
    Assignee: Essex Group, Inc.
    Inventors: Robert M. Bishop, Louis G. Ditton