Patents by Inventor Theo Koopmann

Theo Koopmann 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).

  • Measured value receiver for vacuum measurement
    Patent number: 5191799
    Abstract: The invention relates to a measured value pickup for vacuum measurements, with the pickup including a sensor as well as electronic circuits for supplying the sensor with voltage, and a signal processing device. In order to be able to employ the measure value pickup independently of the location of the measured value processing system, it is proposed to configure it as a transmitter.
    Type: Grant
    Filed: June 27, 1990
    Date of Patent: March 9, 1993
    Assignee: Leybold AG
    Inventors: Anno Schoroth, Theo Koopmann