Patents by Inventor Hermann Friedrich Hoepken

Hermann Friedrich Hoepken 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).

  • Monitoring system and technique
    Patent number: 5757672
    Abstract: The operability of a plurality of sensors is monitored by periodically interrogating the sensors individually and evaluating the responses to the interrogation. The sensors are each connected to a two-conductor power supply bus via a signal processor and an interface. The information exchanged via the bus is in the form of binary coded signals generated by clocking the bus voltage.
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: May 26, 1998
    Assignee: K.A. Schmersal GmbH & Co.
    Inventor: Hermann Friedrich Hoepken