Patents by Inventor Wolfgang Gottschling

Wolfgang Gottschling 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).

  • High-pressure sodium vapor lamp
    Patent number: 4963796
    Abstract: A high-pressure sodium vapor lamp with elevated color temperature, high light yield and improved color rendering properties for general illumination purposes uses sodium or sodium amalgam with mole fractions x.sub.Na >0.9 as the arc media. The lamp power supply supplies pulses with a duty cycle .GAMMA.of 0.01>.GAMMA.>0.1 with alternating polarity, or with mole fractions x.sub.Na >0.95 even at uniform polarity, respectively.
    Type: Grant
    Filed: February 27, 1989
    Date of Patent: October 16, 1990
    Assignee: Kombinat VEB Narva
    Inventors: Wolfgang Gottschling, Klaus Guenther, Hans-Georg Kloss, Rainer Radtke, Felix Serick