Patents by Inventor David P. Kennedy

David P. Kennedy 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).

  • Flat battery
    Patent number: 4242424
    Abstract: The method of making a thin flat laminar battery comprising the steps of coating a substrate with a dispersion of zinc powder and water to produce an anode slurry, and thereafter diffusing electrolytes into said anode slurry; and electrical cells and batteries made by this process.
    Type: Grant
    Filed: April 7, 1978
    Date of Patent: December 30, 1980
    Assignee: Polaroid Corporation
    Inventors: Sheldon A. Buckler, Fredric S. Cohen, David P. Kennedy
  • Method of making a flat battery
    Patent number: 4118860
    Abstract: The method of making a thin flat laminar battery comprising the steps of coating a substrate with a dispersion of zinc powder and water to produce an anode slurry, and thereafter diffusing electrolytes into said anode slurry; and electrical cells and batteries made by this process.
    Type: Grant
    Filed: January 27, 1977
    Date of Patent: October 10, 1978
    Assignee: Polaroid Corporation
    Inventors: Sheldon A. Buckler, Fredric S. Cohen, David P. Kennedy