Patents by Inventor Helfried Schadauer

Helfried Schadauer 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).

  • Light fitting with an in particular small-volume lamp
    Patent number: 5931567
    Abstract: Light fitting (1) having an in particular small-volume lamp (2) and having a main reflector (5) which is preferably set up for the radiation of a narrow bundle of light, whereby in at least on part region of the lateral periphery of the main reflector (5) there is arranged an auxiliary reflector (31), whereby the main reflector (5) is of transparent material and is coated on the outside or on the inside with a reflection layer (23), whereby the auxiliary reflector (31) is arranged outwardly of the main reflector (5), and whereby in the region of the auxiliary reflector (31) no reflection layer (23) is provided on the main reflector (5) (window 34).
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: August 3, 1999
    Assignee: Zumtobel Staff GmbH
    Inventors: Gerd Salzmann, Helfried Schadauer
  • Ceiling light exterior
    Patent number: D401375
    Type: Grant
    Filed: October 3, 1996
    Date of Patent: November 17, 1998
    Assignee: Zumtobel Staff GmbH
    Inventors: Wolfgang Wolber, Helfried Schadauer, Anton Feurstein, Friedrich Schabus, Markus Bohle