Patents by Inventor Hagan Mittelstrass

Hagan Mittelstrass 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).

  • Serpentine heat exchanger
    Patent number: 6705386
    Abstract: The invention relates to a serpentine heat exchanger having a first serpentine tube block (12a) comprising one or more adjacent first serpentine tube sections with parallel through-flow and a second serpentine tube block (12b) disposed behind the first and comprising one or more adjacent second serpentine tube sections with parallel through-flow. According to the invention, at least one of the second serpentine tube sections is connected in series for flow purposes via a diversion section (10, 11) to a first serpentine tube section lying adjacent thereto.
    Type: Grant
    Filed: October 5, 2001
    Date of Patent: March 16, 2004
    Assignee: Behr GmbH & Co. Stuttgart
    Inventors: Walter Demuth, Martin Kotsch, Hans-Joachim Krauss, Hagan Mittelstrass, Harald Raiser, Michael Sickelmann, Karl-Heinz Staffa, Christoph Walter
  • Serpentine heat exchanger
    Publication number: 20020062953
    Abstract: The invention relates to a serpentine heat exchanger having a first serpentine tube block (12a) comprising one or more adjacent first serpentine tube sections with parallel through-flow and a second serpentine tube block (12b) disposed behind the first and comprising one or more adjacent second serpentine tube sections with parallel through-flow. According to the invention, at least one of the second serpentine tube sections is connected in series for flow purposes via a diversion section (10, 11) to a first serpentine tube section lying adjacent thereto.
    Type: Application
    Filed: October 5, 2001
    Publication date: May 30, 2002
    Inventors: Walter Demuth, Martin Kotsch, Hans-Joachim Krauss, Hagan Mittelstrass, Harald Raiser, Michael Sickelmann, Karl-Heinz Staffa, Christoph Walter