Patents by Inventor David Kilby

David Kilby 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).

  • High discharge electrolytic manganese dioxide and an electrode and alkaline cell incorporating the same
    Publication number: 20030180612
    Abstract: An alkaline electrochemical cell is disclosed having a positive electrode, a negative electrode, and an electrolyte. The positive electrode comprises electrolytic manganese dioxide having a pH-voltage of at least about 0.860 volt. The electrolytic manganese dioxide also preferably has less than about 250 ppm and more preferably less than about 150 ppm of potassium impurities by weight. Electrolytic manganese dioxide having these properties exhibits significant synergistic and unexpected improvements in high-rate service, which translates to improved high-rate service life of the electrochemical cell containing the improved electrolytic manganese dioxide in its positive electrode.
    Type: Application
    Filed: March 25, 2003
    Publication date: September 25, 2003
    Inventors: David Kilby, Philip J. Slezak
  • High discharge electrolytic manganese dioxide and an electrode and alkaline cell incorporating the same
    Patent number: 6589693
    Abstract: An alkaline electrochemical cell is disclosed having a positive electrode, a negative electrode, and an electrolyte. The positive electrode comprises electrolytic manganese dioxide having a pH-voltage of at least about 0.860 volt. The electrolytic manganese dioxide also preferably has less than about 250 ppm and more preferably less than about 150 ppm of potassium impurities by weight. Electrolytic manganese dioxide having these properties exhibits significant synergistic and unexpected improvements in high-rate service, which translates to improved high-rate service life of the electrochemical cell containing the improved electrolytic manganese dioxide in its positive electrode.
    Type: Grant
    Filed: June 14, 2000
    Date of Patent: July 8, 2003
    Assignee: Eveready Battery Company, Inc.
    Inventors: David Kilby, Philip J. Slezak
  • Phosphate ester additive to alkaline cells to reduce gassing
    Patent number: 5378559
    Abstract: Alkaline zinc cells employing a brass anode current collection and little or no mercury and wherein a specific phosphate ester is added, preferably to the anode, to reduce gassing attributed to the brass anode current collector.
    Type: Grant
    Filed: November 22, 1993
    Date of Patent: January 3, 1995
    Assignee: Eveready Battery Company, Inc.
    Inventors: Christopher F. Randell, David Kilby