Patents by Inventor Hans-Joachim Haese

Hans-Joachim Haese 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).

  • Patent number: 4009715
    Abstract: A filter particularly for infusion and transfusion apparatus, comprises a housing having an inlet passage and a discharge passage spaced from the inlet passage. The housing includes a surface with a spiral flow passage defined thereon which is centrally communicated to the discharge passage. A filtering material is placed over the spiral in the housing which is made up of two parts which are interconnectable at the location of the spiral and which also act to hold the filter material in position. In an alternate embodiment, the housing of the filter is formed as a portion of a cannula. The inlet and outlet flow passages of the housing may be arranged to align axially, for example, on one side of the housing, or they may be offset.
    Type: Grant
    Filed: August 22, 1975
    Date of Patent: March 1, 1977
    Assignee: Transcodan Sven Husted-Andersen
    Inventors: Hans-Jurgen Forberg, Hans-Joachim Haese, Herbert Manz