Patents by Inventor Andreas M. Kummerow

Andreas M. Kummerow 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).

  • Field-flow fractionation method and apparatus
    Publication number: 20040000519
    Abstract: An improved field-flow fractionation method and apparatus for the separation of sample species 28 contained in a carrier fluid, wherein
    Type: Application
    Filed: June 28, 2002
    Publication date: January 1, 2004
    Applicant: Postnova Analytics, Inc.
    Inventors: Yong Jiang, Michael E. Miller, Marcus N. Myers, Andreas M. Kummerow, Soheyl Tadjiki, Marcia E. Hansen, Thorsten Klein
  • Sample focusing device and method
    Patent number: 6192764
    Abstract: Sample focusing method and device for field-flow fractionation techniques that lead to improved detection, improved separation resolution, and a compressed sample plug while permitting a more straightforward quantitation of peaks and reliable large volume injections. The method and device can be implemented in separations that are performed by a variety of field-flow fractionation techniques, including thermal FFF, electrical FFF, sedimentation FFF, gravitational FFF, dielectric FFF, photophoretic FFF, flow FFF, asymmetric flow FFF, and symmetric flow FFF. The sample focusing device can be integrally built into a separation channel or it can be manufactured as an attachable independent piece.
    Type: Grant
    Filed: December 23, 1999
    Date of Patent: February 27, 2001
    Assignee: FFFractionation, LLC
    Inventors: Yong Jiang, Marcia E. Hansen, Michael E. Miller, Andreas M. Kummerow
  • Sample focusing device and method
    Patent number: 6109119
    Abstract: Sample focusing method and device for field-flow fractionation techniques that lead to improved detection, improved separation resolution, and a compressed sample plug while permitting a more straightforward quantitation of peaks and reliable large volume injections. The method and technique can be implemented in separations that are performed by a variety of field-flow fractionation techniques, including thermal FFF, electrical FFF, sedimentation FFF, gravitational FFF, dielectric FFF, photophoretic FFF, flow FFF, asymmetric flow FFF, and symmetric flow FFF. The sample focusing device can be integrally built into a separation channel or it can be manufactured as an attachable independent piece.
    Type: Grant
    Filed: February 27, 1998
    Date of Patent: August 29, 2000
    Assignee: FFFractionation, LLC
    Inventors: Yong Jiang, Marcia E. Hansen, Michael E. Miller, Andreas M. Kummerow