Patents by Inventor John F. Leonard

John F. Leonard 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).

  • Method of fabricating cadmium electrodes
    Patent number: 4242179
    Abstract: The fabrication of porous cadmium electrodes is disclosed in which high cadmium loading without surface buildup is obtained by using a relatively low current density (approximately 0.2 amperes per square inch of plaque area) and period current reversals of time durations approximately equal to 15% of the forward time durations at a current density substantially equal to the forward current density.
    Type: Grant
    Filed: July 27, 1979
    Date of Patent: December 30, 1980
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: David H. Fritts, John F. Leonard, Thirumalai G. Palanisamy