Patents by Inventor Frank Stratmann

Frank Stratmann 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 and apparatus for investigating temporal development of particles or droplets in gas-vapor mixture
    Patent number: 6766702
    Abstract: The present invention relates to a method for investigating the behavior of particles or droplets in a gas-vapor mixture inside a flow device, which is useful for studying cloud dynamical and microphysical processes. The invention allows adjustment and/or control of the thermodynamic system parameters based on the observed behavior of an internal standard with known properties, thus achieving a well-defined vapor concentration and saturation field inside the flow device. By injecting particles or droplets to be investigated into this well defined flow device, and measuring the size of the particles or droplets, the activation and growth or shrinking behavior of the particles or droplets may be determined using a mathematical model of the fluid, thermodynamic, and chemical conditions of the flow device.
    Type: Grant
    Filed: July 16, 2001
    Date of Patent: July 27, 2004
    Assignee: Institute for Tropospheric Research, a German non-profit organization
    Inventors: Jost Heintzenberg, Robert J. Charlson, Frank Stratmann, Manfred Wendisch, Sabine Wurzler
  • Method and apparatus for investigating temporal development of particles or droplets in a gas-vapor mixture
    Publication number: 20030020050
    Abstract: The present invention relates to a method for investigating the behavior of particles or droplets in a gas-vapor mixture inside a flow device, which is useful for studying cloud dynamical and microphysical processes. The invention allows adjustment and/or control of the thermodynamic system parameters based on the observed behavior of an internal standard with known properties, thus achieving a well-defined vapor concentration and saturation field inside the flow device. By injecting particles or droplets to be investigated into this well defined flow device, and measuring the size of the particles or droplets, the activation and growth or shrinking behavior of the particles or droplets may be determined using a mathematical model of the fluid, thermodynamic, and chemical conditions of the flow device.
    Type: Application
    Filed: July 16, 2001
    Publication date: January 30, 2003
    Inventors: Jost Heintzenberg, Robert J. Charlson, Frank Stratmann, Manfred Wendisch, Sabine Wurzler