Patents by Inventor Hartmut Giesbrecht

Hartmut Giesbrecht 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).

  • Inhalation apparatus for test animals
    Patent number: 4479493
    Abstract: Inhalation apparatus for test animals for investigating the biological effect of substances mixed with respiratory air. It comprises a distributor chamber which is connected to a respiratory air preparation unit and has several openings, animal tubes connected to the openings and suction devices, connected to a disposal system, for removing the waste air. Each transition piece between the head and trunk of the animal tubes has holes connecting the animal tubes inserted into the apparatus to the suction devices.
    Type: Grant
    Filed: November 9, 1981
    Date of Patent: October 30, 1984
    Assignee: BASF Aktiengesellschaft
    Inventors: Richard Bung, Hartmut Giesbrecht, Wolfgang Leuckel, Hans-Joachim Klimisch