Patents by Inventor John T. C. Kan

John T. C. Kan 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 and apparatus for achieving prolonged battery life
    Patent number: 7147972
    Abstract: A composition for prolonging battery life by reducing water loss and the degradation of properties due to dendritic precipitation, is refreshingly added to a battery electrolyte. By the refreshment of the composition, battery cycle life is substantially increased while degradation of the internal battery components is substantially reduced.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: December 12, 2006
    Inventors: Johan C Fitter, Robert T Morris, Jr., Richard E Belmont, John T. C. Kan
  • Method and apparatus for achieving prolonges battery life
    Publication number: 20040048144
    Abstract: A composition for prolonging battery life by reducing water loss and the degradation of properties due to dendritic precipitation, is refreshingly added to a battery electrolyte. By the refreshment of the composition, battery cycle life is substantially increased while degradation of the internal battery components is substantially reduced.
    Type: Application
    Filed: August 29, 2003
    Publication date: March 11, 2004
    Inventors: Johan C. Fitter, Robert T. Morris, Richard E. Belmont, John T.C. Kan
  • Method and apparatus for achieving prolonged battery life
    Patent number: 6635387
    Abstract: A composition for prolonging battery life by reducing water loss and the degradation of properties due to dendritic precipitation, is refreshingly added to a battery electrolyte. By the refreshment of the composition, battery cycle life is substantially increased while degradation of the internal battery components is substantially reduced.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: October 21, 2003
    Inventors: Johan C. Fitter, Robert T. Morris, Jr., Richard E. Belmont, John T. C. Kan
  • Method and apparatus for achieving prolonged battery life
    Publication number: 20020051912
    Abstract: A composition for prolonging battery life by reducing water loss and the degradation of properties due to dendritic precipitation, is refreshingly added to a battery electrolyte. By the refreshment of the composition, battery cycle life is substantially increased while degradation of the internal battery components is substantially reduced.
    Type: Application
    Filed: March 19, 2001
    Publication date: May 2, 2002
    Inventors: Johan C. Fitter, Robert T. Morris, Richard E. Belmont, John T.C. Kan
  • Method and apparatus for charging a battery in high amp and automatic charging modes
    Patent number: 5168205
    Abstract: A battery charger adapted to be electrically connected to the terminals of a battery for providing a charge to the battery, the battery charger comprising a device for supplying charging current to the battery, the current supplying device being operable to alternatively and selectively supply current at a first and second rate, the first rate providing for high rate charging of the battery, circuitry for sensing the voltage of the battery while the charger is connected to the battery, the sensing circuitry being adapted to be coupled to the battery, circuitry for alternatively selecting the first rate and the second rate, the selecting circuitry being coupled to the supplying circuitry and to the severing circuitry, circuitry for severing the supply of charging current to the battery when the second rate is selected, and when the sensing circuitry senses battery voltage in excess of a first predetermined threshold voltage, and for resuming the supply of current to the battery at the second rate when the sens
    Type: Grant
    Filed: April 4, 1990
    Date of Patent: December 1, 1992
    Assignee: Hein-Werner Corporation
    Inventors: John T. C. Kan, John F. Kan, Joseph P. Habermann