Patents by Inventor Guodo Hheremans

Guodo Hheremans 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).

  • GAS DISCHARGE LAMPS
    Publication number: 20110254452
    Abstract: An electronic ballast (10), for a gas discharge lamp (18), comprises a constant current source (14) and a switch (16). A transformer (60), for use in an igniter (90) for a gas discharge lamp (18, 40), comprises a core (62) which has interconnected legs (64, 66, 68), a first secondary winding (70) around a first leg (64), a second secondary winding (72) around a second leg (66), and a primary winding (74) around a third leg (66). An igniter (90) for a gas discharge lamp (18, 40) comprises a transformer (60) as described above and a drive circuit (92) for driving the primary winding (74).
    Type: Application
    Filed: July 8, 2008
    Publication date: October 20, 2011
    Inventors: Jens-Peter Kunzmann, Bernhard Pfeiffer, Phillip Foxley, Edwin Maurer, Guodo Hheremans, Payl Clarke, Melvyn Mcgann