Patents by Inventor Norbert Marschall

Norbert Marschall 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).

  • Ignition system with a field emitter coupled to the spark plug
    Patent number: 5969480
    Abstract: An ignition system supplies high-voltage to spark plugs via field emitters. An ignition control device produces the ignition cycle for the ignition system and controls the ignition process of the ignition system. The field emitters couple the ignition control device to the spark plugs. The field emitters switch and regulate the high-voltage for the spark plugs.
    Type: Grant
    Filed: June 20, 1997
    Date of Patent: October 19, 1999
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventors: Wilfried Schmolla, Norbert Marschall
  • Homogeneous photoconductive layer of amorphous silicon and hydrogen
    Patent number: 4713311
    Abstract: The present invention relates to an electrophotographic recording material and to a process for manufacturing it. The material comprises an electrically conductive substrate and a photoconductive layer of amorphous silicon and hydrogen applied thereto. The recording material is characterized by only a single photoconductive layer having an oxygen component of about 1 ppm to 1 atom percent. The recording material is produced by means of cathode sputtering.
    Type: Grant
    Filed: December 7, 1983
    Date of Patent: December 15, 1987
    Assignee: Licentia Patent-Verwaltungs-GmbH
    Inventors: Wilhelm Senske, Roland Herkert, Norbert Marschall, Karl-Heinrich Greeb