Patents by Inventor Heinz-Juergen Friesen

Heinz-Juergen Friesen 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).

  • Artificial positive controls derived from bifunctional conjugates
    Patent number: 5895811
    Abstract: The invention relates to an artificial positive control reagents based on antibody conjugates that are used in immunochemical detection methods and to processes for the preparation of these reagents.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: April 20, 1999
    Assignee: Behring Diagnostics GmbH
    Inventors: Stefan Brust, Heinz-Juergen Friesen, Guenther Nau, Hans-Erwin Pauly
  • Artificial positive controls derived from bifunctional conjugates
    Patent number: 5491218
    Abstract: The invention relates to artificial positive control reagents based on antibody conjugates that are used in immunochemical detection methods and to processes for the preparation of these reagents.
    Type: Grant
    Filed: April 1, 1994
    Date of Patent: February 13, 1996
    Assignee: Behringwerke Aktiengesellschaft
    Inventors: Stefan Brust, Heinz-Juergen Friesen, Guenther Nau, Hans-Erwin Pauly
  • Sheet-like diagnostic device
    Patent number: RE38688
    Abstract: A solid diagnostic device for the quantitative determination of substances of biological affinity in biological fluids is described. A process is also described in which the biological fluid is brought into contact with a specific functional sector of the device, the fluid migrates through several functional sectors situated beside one another and containing suitable reagent components, and one or more substances of biological affinity are detected in such functional sectors which contain, for each substance to be detected, at least one combination partner of biological affinity, attached to a solid phase.
    Type: Grant
    Filed: March 30, 2001
    Date of Patent: January 18, 2005
    Assignee: Dade Behring Marburg GmbH
    Inventors: Heinz-Jürgen Friesen, Gerd Grenner, Hans-Erwin Pauly, Helmut Kohl, Klaus Habenstein, Joseph Stärk
  • Sheet-like diagnostic device
    Patent number: RE37437
    Abstract: A solid diagnostic device for the quantitative determination of substances of biological affinity in biological fluids is described. A process is also described in which the biological fluid is brought into contact with a specific functional sector of the device, the fluid migrates through several functional sectors situated beside one another and containing suitable reagent components, and one or more substances of biological affinity are detected in such functional sectors which contain, for each substance to be detected, at least one combination partner of biological affinity, attached to a solid phase.
    Type: Grant
    Filed: October 18, 1995
    Date of Patent: November 6, 2001
    Assignee: Dade Behring Marburg, GmbH
    Inventors: Heinz-Jürgen Friesen, Gerd Grenner, Hans-Erwin Pauly, Helmut Kohl, Klaus Habenstein, Joseph Stärk