Patents by Inventor Johann Pappert

Johann Pappert 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).

  • Apparatus for the examination of measuring gases by means of microwaves
    Patent number: 4896097
    Abstract: An apparatus for the analysis of gaseous media, the apparatus composed of a microwave transmitter; a microwave receiver; a measuring cell disposed between the transmitter and the receiver, composed of at least one Stark chamber, and having a gas inlet and a gas outlet; at least one Stark electrode disposed in, and electrically insulated from, the chamber; and a plurality of mutually spaced holders holding the electrode in a predetermined position in the chamber.
    Type: Grant
    Filed: July 9, 1987
    Date of Patent: January 23, 1990
    Assignee: Kernforschungszentrum Karlsruhe GmbH
    Inventors: Lutz Berger, Gunther Krieg, Johann Pappert, Gerhard Schmitt