Patents by Inventor Dirk Pfenning

Dirk Pfenning 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).

  • Electrochemical sensor
    Patent number: 5403463
    Abstract: An electrochemical sensor having at least two electrodes that communicate with a liquid measurement cell electrolyte and a housing that encloses the electrodes and the electrolyte. The surfaces of the electrodes facing the electrolyte bridge web connecting the electrodes are covered with a semipermeable membrane.
    Type: Grant
    Filed: April 14, 1994
    Date of Patent: April 4, 1995
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Christoph Braden, Jacques Deprez, Holger Ohst, Dirk Pfenning, Karlheinz Hildenbrand