Patents by Inventor Bernard Siessegger

Bernard Siessegger 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).

  • Operating method for a high-pressure discharge lamp
    Publication number: 20070108913
    Abstract: The invention relates to an operating method for a high-pressure discharge lamp which comprises a transparent discharge vessel (1), enclosing a substantially cylindrical discharge chamber (10), in which electrodes (2, 3) and an ionizable charge, for generating a light-emitting gas discharge, are arranged, whereby the aspect ratio is higher than 0.86. According to said invention, the high-pressure discharge lamp is operated by means of a substantially sinusoidal current at a preset frequency, lying in a frequency range above 30 kilohertz and free from acoustic resonances.
    Type: Application
    Filed: July 19, 2004
    Publication date: May 17, 2007
    Applicant: PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCH GLUHAL
    Inventors: Klaus Gunther, Thomas Hartmann, Gunther Hirschmann, Bernard Siessegger