Patents by Inventor Ralf Mueller-Sybrichs

Ralf Mueller-Sybrichs 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).

  • Display instrument
    Patent number: 6152066
    Abstract: A display instrument with a first display and with an electro-luminescent display arranged at least partially in front of the first display is, where the first display can be illuminated or can be rendered luminous and appears as an almost uniformly dark surface when neither illuminated nor luminous.
    Type: Grant
    Filed: April 21, 1997
    Date of Patent: November 28, 2000
    Assignee: Moto-Meter GmbH
    Inventors: Peter Knoll, Ralf Mueller-Sybrichs, Derk Oreans
  • Display gauge
    Patent number: 5839810
    Abstract: A display gauge in which an electroluminescent display is arranged between a dial face and a support plate, the electroluminescent display being connected to electrical components arranged on the back side of the support plate.
    Type: Grant
    Filed: April 17, 1997
    Date of Patent: November 24, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Walter Hersel, Ralf Mueller-Sybrichs, Derk Oreans, Bernhard Friedl