Patents by Inventor David Kachmarick

David Kachmarick 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).

  • Low wattage fluorescent lamp
    Patent number: 6400097
    Abstract: A low-wattage mercury vapor discharge fluorescent lamp is provided for use with existing 110V high frequency electronic ballasts. The lamp has a discharge sustaining fill gas of mercury vapor and an inert gas that does not require a starting aid. The inert gas has 40-100 vol. % krypton, balance argon, and the fill gas has a total pressure of 0.5-3 torr. The phosphor layer has a coating weight of 2.3-4.3 mg/cm2.
    Type: Grant
    Filed: October 18, 2001
    Date of Patent: June 4, 2002
    Assignee: General Electric Company
    Inventors: Feng Jin, Thomas F. Soules, David Kachmarick