Patents by Inventor David L. Blattenberger

David L. Blattenberger 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).

  • Lithium-iodine electrochemical cells with improved end of life characteristics
    Patent number: 5209994
    Abstract: In lithium iodine electrochemical cells, control of polyvinylpyridine film thickness and/or polyvinylpyridine film surface area coverage and/or control of the quantity thereof on or with respect to the lithium anode operative surface directly affects cell voltage characteristics during discharge, allowing the tailoring of the voltage characteristics near cell end-of-life (EOL) in a useful way.
    Type: Grant
    Filed: December 13, 1990
    Date of Patent: May 11, 1993
    Assignee: Medtronic, Inc.
    Inventors: David L. Blattenberger, William D. Helgeson, John C. Strohkirch, Bernard Heller