Patents by Inventor Ulrich Kirsch

Ulrich Kirsch 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).

  • Fused fiber blood filter
    Patent number: 4132650
    Abstract: A filter element that is particularly suitable for filtration of blood is made by compacting a mixture of fibers that is non-injurious to blood and one component of which has a lower softening temperature than the other component or components at a temperature sufficient to soften said fiber component and thereby bind the various fiber components together to form a stable and substantially uniform filter element.
    Type: Grant
    Filed: November 8, 1974
    Date of Patent: January 2, 1979
    Assignees: B. Braun Melsungen Aktiengesellschaft, Carl Freudenberg, Kommanditgesellschaft
    Inventors: Ulrich Kirsch, Manfred Krull
  • Device for measuring sedimentation rates
    Patent number: 3938370
    Abstract: A device for facilitating rapid and accurate determination or measurement of sedimentation rates of fluid suspensions, e.g. erythrocytes in blood plasma, includes a sedimentation tube having open upper and lower ends, a scale with a zero point adjacent the upper end of the tube, and means for selectively opening and closing the tube adjacent said upper end, said means having a surface portion extending across the tube when the tube is closed, which surface portion is located precisely at the zero point in the scale.
    Type: Grant
    Filed: February 20, 1974
    Date of Patent: February 17, 1976
    Assignee: Intermedicat GmbH
    Inventors: Ulrich Kirsch, Wolfgang Buhler