Patents by Inventor Ekkehard Zerbst

Ekkehard Zerbst 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).

  • Hypodermic syringe
    Patent number: 4850994
    Abstract: The invention relates to a hypodermic syringe in which a hollow needle is surrounded by a protective sheathing in such a way that after the injection has been performed the protective sheathing encloses the tip of the hollow needle to provide protection.
    Type: Grant
    Filed: June 10, 1987
    Date of Patent: July 25, 1989
    Assignee: Physionic Gesellschaft fur Medizin-und, Systemtechnik GmbH
    Inventors: Ekkehard Zerbst, Tim Peters, Hans-Eberhard Koralewski