Patents by Inventor Dieter Gerstner

Dieter Gerstner 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).

  • Indicating device
    Patent number: 4403830
    Abstract: An indicating device has a first surface area having variable optical properties and a second surface area having fixed optical properties. The optical properties of the first and second surface areas are coordinated to provide improved readability and perceptibility of the indications on the indicating device.
    Type: Grant
    Filed: July 18, 1980
    Date of Patent: September 13, 1983
    Assignee: Licentia Patent-Verwaltungs-GmbH
    Inventor: Dieter Gerstner
  • Circuit arrangement
    Patent number: 4183021
    Abstract: A circuit arrangement of luminescence diodes with a minimum of control lines. The circuit arrangement comprises two current branches each having a plurality of luminescence semiconductor components with forward/reverse characteristics connected in series in the same polarity, the components in each branch having opposite polarities and control lines each connected to one side of at least one component.
    Type: Grant
    Filed: March 29, 1977
    Date of Patent: January 8, 1980
    Assignee: Licentia Patent-Verwaltungs-G.m.b.H.
    Inventor: Dieter Gerstner
  • Semiconductor arrangement
    Patent number: 4164747
    Abstract: A semiconductor arrangement for switching large currents comprises a drive transistor and an output transistor connected together in the manner of a Darlington circuit and being of the same region sequence, a further three region semiconductor component of opposite sequence being connected by its central region to the base of the drive transistor, by the outer region to the base of the output transistor and by its other outer region to an electrode of the output transistor which is not connected directly to the drive transistor.
    Type: Grant
    Filed: March 9, 1977
    Date of Patent: August 14, 1979
    Assignee: Licentia Patent-Verwaltungs-G.m.b.H.
    Inventor: Dieter Gerstner