Patents by Inventor Michael Litvinovich

Michael Litvinovich 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).

  • Fused lead wire for ballast protection
    Patent number: 7889463
    Abstract: A ballast having fused leads protects against uncommon, but harmful, ballast failures. The fused leads prevent a current in the primary coil of the ballast from exceeding a potentially damaging value. A thermal protector shorts the primary ballast coil if the temperature of the secondary ballast coil exceeds a potentially damaging value. Since the thermal protector permanently disables the ballast, potentially damaging repetitive overheating of the ballast is prevented.
    Type: Grant
    Filed: April 14, 2006
    Date of Patent: February 15, 2011
    Assignee: Universal Lighting Technologies, Inc.
    Inventors: Robert V. Burke, Michael Litvinovich
  • Lamp circuit with controlled ignition pulse voltages over a wide range of ballast-to-lamp distances
    Patent number: 7705544
    Abstract: A lamp ignition circuit provides a high voltage electrical pulse to ignite a gas discharge lamp. A non-linear filter element within a charge circuit regulates the voltage of the ignition pulse such that the ignition pulse remains within a prescribed voltage range over a wide variety of conduit lengths between the lamp and the lamp ignition circuit. This allows for the ballast and lamp ignition circuit to be mounted either close to the lamp or far from the lamp without modifying the ignition circuitry.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: April 27, 2010
    Assignee: Universal Lighting Technologies, Inc.
    Inventors: Yakov Kipervaser, Michael Litvinovich