Patents by Inventor Stephan Gelahr

Stephan Gelahr 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).

  • Process and device for electrolytic polishing of surgical needles
    Patent number: 6432295
    Abstract: In a process for the electrolytic polishing of surgical needles, a plurality of unfinished needles, which are arranged side by side and are secured to at least one web (6, 7) in their end-regions lying opposite the needle tips, are moved with the help of the web (6, 7) through an acid-containing polishing bath (22) which is electrically connected to an electrode. The web (6, 7) is guided above the polishing bath (22). The unfinished needles dip at least with the needle tips into the polishing bath (22). Above the polishing bath (22) and alongside the web (6, 7), a metal ribbon (40) connected as a counter-electrode provides an electrical connection with the unfinished needles.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: August 13, 2002
    Assignee: Ethicon Limited
    Inventors: Horst Szameitat, Stephan Gelahr