Patents by Inventor Hartmut Merten

Hartmut Merten 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).

  • Method for the destruction of toxic waste products and a plasma chemical reactor
    Patent number: 5108718
    Abstract: Toxic wastes are destroyed by contact thereof with a steam plasma jet and immediately thereafter with an oxidizing medium followed by washing of the resultant gaseous product with an alkaline medium. An apparatus for carrying out this method is in the form of a tubular assembly adapted to be received on a plasmatron in axial alignment therewith.
    Type: Grant
    Filed: July 14, 1989
    Date of Patent: April 28, 1992
    Assignee: VEB Chemieanlagenbaukombinat Leipzig/Grimma
    Inventors: Hans-Ulrich Dummersdorf, Robert Kunze, Gert Wohllebe, Dietrich Hebecker, Werner Noack, Heinz Dummersdorf, Wolfgang Jahn, Hartmut Merten
  • Method for determining the presence of diborane in air
    Patent number: 4740474
    Abstract: Diborane is detected in air with high sensitivity (ppb range) and selectivity. The invention is thus suitable for the monitoring of work places and rooms, the emission of plants, etc. The detection is based on an aerosol ionization gas analysis. In addition to an amine, a reagent which does not react with amine is added to the air stream and reacts with the diborane to form a compound which forms aerosols with the amine. The aerosols obtained by this reaction constitute the main measuring effect. When using SO.sub.2 in concentration.gtoreq.3.5 ppm, disturbances due to the SO.sub.2 content of the air are eliminated.
    Type: Grant
    Filed: September 15, 1986
    Date of Patent: April 26, 1988
    Assignee: Akademie der Wissenschaften der DDR Dragerwerk AG
    Inventors: Hans-Jorg Grosse, Helga Nietzschmann, Hartmut Merten, Klaus Plewinski