Patents Assigned to Carl Freudenberg, Kommanditgesellschaft
  • 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