Patents by Inventor Heiner Holland

Heiner Holland 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).

  • Circuit arrangement for air quality measurement with logarithmic signal evaluation
    Patent number: 5808461
    Abstract: A circuit arrangement for air quality measuring having at least one sensor element which has resistors the resistance of which changes depending on the air composition. The circuit arrangement has an evaluation circuit for the sensor signals and includes a logarithmic circuit.
    Type: Grant
    Filed: July 29, 1996
    Date of Patent: September 15, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Thomas Weigold, Heiner Holland