Patents by Inventor Axel Sieber

Axel Sieber 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 for the kinetic determination of immunocomplexes
    Patent number: 4476230
    Abstract: A process for the detection and for the determination of immunocomplexes in liquids is described. It is based on determining the rate at which the immunoglobulin or the antigen present in the complex reacts with an appropriate immuno-partner, and relating this rate to the rate at which this immunoglobulin or antigen reacts with the corresponding immuno-partner in an immunocomplex-free liquid.
    Type: Grant
    Filed: February 12, 1981
    Date of Patent: October 9, 1984
    Assignee: Behringwerke Aktiengesellschaft
    Inventor: Axel Sieber
  • Latex reagent
    Patent number: 4305925
    Abstract: What is disclosed is an improved nephelometric method for detecting an antigen or antibody by contact thereof in a liquid medium with particles of a latex reagent comprising latex particles of different sizes loaded with different amounts of a corresponding antibody or antigen and then measuring the light scattered by a latex reagent.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: December 15, 1981
    Assignee: Behringwerke Aktiengesellschaft
    Inventors: Wolfgang Kapmeyer, Axel Sieber
  • Process for producing a bond between polyvinylene glycol and a substance containing primary amino groups
    Patent number: 4066581
    Abstract: A bond is produced between a synthetic polymer containing vicinal hydroxyl groups and a substance containing primary amino groups by treating the polymer with a medium to strong oxidant until a sufficient number of aldehyde groups is formed and then reacting the oxidation product with the substance containing primary amino groups.
    Type: Grant
    Filed: February 24, 1977
    Date of Patent: January 3, 1978
    Assignee: Behringwerke Aktiengesellschaft
    Inventor: Axel Sieber
  • Stable blood plasma, process for preparing it and its use as comparative plasma in coagulation tests
    Patent number: 4056484
    Abstract: Lyophilized blood plasma under a protective gas wherein the protective gas contains at least 5% of carbon dioxide.
    Type: Grant
    Filed: December 29, 1975
    Date of Patent: November 1, 1977
    Assignee: Behringwerke Aktiengesellschaft
    Inventors: Norbert Heimburger, Axel Sieber, Horst Schwinn
  • Process and device for measuring antigen-antibody reactions
    Patent number: 3990851
    Abstract: Antigen-antibody reactions are measured by passing laser light through the mixture of the antigen solution with the corresponding antibody and measuring the light scattered in the forward direction and determining its intensity. The device used comprises a measuring system consisting of a laser, at least two diaphragms, a system of lenses and a photodetector and a light trap having a diameter corresponding to 1.1 to 1.7 times the diameter of the laser beam.
    Type: Grant
    Filed: February 25, 1975
    Date of Patent: November 9, 1976
    Assignee: Behringwerke Aktiengesellschaft
    Inventors: Jurgen Gross, Arno Holst, Helmut Lask, Axel Sieber
  • Arrangement and process for determining antigens
    Patent number: 3930983
    Abstract: An arrangement for the simultaneous qualitative or quantitative determination of several antigens in mixtures of antigens by immunoelectrophoresis in a matrix containing antibodies, by coating the support for the matrix with several matrix strips, one following the other and each containing a specific antiserum, and a process for the determination of several antigens in mixtures, wherein said arrangement is used.
    Type: Grant
    Filed: February 12, 1975
    Date of Patent: January 6, 1976
    Assignee: Behringwerke Aktiengesellschaft
    Inventor: Axel Sieber