Patents by Inventor Gerd Schnorr

Gerd Schnorr 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).

  • Process and test kit for determining free active compounds in biological fluids
    Patent number: 6103486
    Abstract: A method for determining the concentration of the free fraction of an active compound, present in a biological fluid, in the presence of natural binders, the free and bound fractions of the active compound being in mutual equilibrium, bya) contacting a sample of the fluid with an unlabeled antibody,b) separating the sample from the unlabeled antibody,c) incubating the unlabeled antibody with a labeled substance (tracer) for cross-reaction with the antibody andd) measuring the amount of the tracer which is or is not bound to the antibody and calculating from this the concentration of the free fraction of the active compound,wherein the quantity of the unlabeled antibody and/or its affinity for the active compound are so small that they do not substantially effect the equilibrium between the free and bound fractions of the active compound, and the affinity of the tracer for the antibody is substantially higher or substantially lower than that of the active compound itself, and a test kit suitable for this metho
    Type: Grant
    Filed: June 14, 1993
    Date of Patent: August 15, 2000
    Assignee: Dade Behring Marburg GmbH
    Inventors: Guido Simons, Helmut Strecker, deceased, Peter Molz, Gerd Schnorr, Heinz Jurgen Skrzipczyk, Hans Wissmann
  • Special chemiluminescent acridine derivatives and the use thereof in luminescence immunoassays
    Patent number: 6002007
    Abstract: Chemiluminescent acridinium derivatives of the formula I ##STR1## in which R.sup.4 represents a radical of the formula II or III ##STR2## and A.sup..theta., X--, R.sup.1 -R.sup.3, R.sup.5 and R.sup.6 have the stated meanings, as well as processes for the preparation of the compounds of the formula (I) and the use thereof in chemiluminescence immunoassays.
    Type: Grant
    Filed: July 20, 1993
    Date of Patent: December 14, 1999
    Assignee: Dade Behring Marburg GmbH
    Inventors: Tonio Kinkel, Peter Molz, Erwin Schmidt, Gerd Schnorr, Heinz Jurgen Skrzipczyk
  • Special chemiluminescent acridine derivatives and the use thereof in luminescence immunoassays
    Patent number: 5879953
    Abstract: Chemiluminescent acridinium derivatives of the formula I ##STR1## in which R.sup.4 represents a radical of the formula II or III ##STR2## and A.sup..theta., X--, R.sup.1 -R.sup.3, R.sup.5 and R.sup.6 have the stated meanings, as well as processes for the preparation of the compounds of the formula (I) and the use thereof in chemiluminescence immunoassays.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 9, 1999
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Tonio Kinkel, Peter Molz, Erwin Schmidt, Gerd Schnorr, Heinz Jurgen Skrzipczyk
  • Special chemiluminescent acridine derivatives
    Patent number: 5783696
    Abstract: Chemiluminescent acridinium derivatives of the formula I ##STR1## in which R.sup.4 represents a radical of the formula II or III ##STR2## and A.sup..theta., X--, R.sup.1 -R.sup.3, R.sup.5 and R.sup.6 have the stated meanings, as well as processes for the preparation of the compounds of the formula (I) and the use thereof in chemiluminescence immunoassays.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: July 21, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Tonio Kinkel, Peter Molz, Erwin Schmidt, Gerd Schnorr, Heinz Jurgen Skrzipczyk
  • Process and test kit for determining free active compounds in biological fluids
    Patent number: 5714336
    Abstract: A method for determining the concentration of the free fraction of an active compound, present in a biological fluid, in the presence of natural binders, the free and bound fractions of the active compound being in mutual equilibrium, bya) contacting a sample of the fluid with an unlabeled antibody,b) separating the sample from the unlabeled antibody,c) incubating the unlabeled antibody with a labeled substance (tracer) for cross-reaction with the antibody andd) measuring the amount of the tracer which is or is not bound to the antibody and calculating from this the concentration of the free fraction of the active compound,wherein the quantity of the unlabeled antibody and/or its affinity for the active compound are so small that they do not substantially effect the equilibrium between the free and bound fractions of the active compound, and the affinity of the tracer for the antibody is substantially higher or substantially lower than that of the active compound itself, and a test kit suitable for this metho
    Type: Grant
    Filed: May 18, 1992
    Date of Patent: February 3, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Guido Simons, Helmut Strecker, deceased, Peter Molz, Gerd Schnorr, Heinz Jurgen Skrzipczyk, Hans Wissmann
  • Process for the stabilization of biologically active substances immobilized on solid phases
    Patent number: 5126242
    Abstract: The invention relates to a process for the stabilization of biologically active substances which are immobilized on a carrier, where the solid phase with the immobilized biologically active substance is contacted for the stabilization with a solution which contains polyanetholesulfonic acid and/or salts thereof. The biologically active substances are, in particular, antibodies.
    Type: Grant
    Filed: June 12, 1990
    Date of Patent: June 30, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Henning Hachmann, Peter Molz, Stephan Neuenhofer, Gerd Schnorr, Guido Simons, Heinz-Jurgen Skrzipczyk, Kurt E. Weimer