Patents by Inventor Helmuth Entenmann

Helmuth Entenmann 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).

  • Self-expanding stent for hollow organs
    Patent number: 5503636
    Abstract: A stent for the splinting and/or for the holding open of a hollow organ is comprised from filaments 11 which are formed together into a tubular and self-expanding netting. In the collapsed state the stent 10 is stretched in an axial direction and in an extended state the stent is fore-shortened in the axial direction. The filaments 11 are formed with rectangular cross-section and the crossing-points 12 are securely attached to another at the free ends 14 and 15.
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: April 2, 1996
    Assignee: Willy Rusch AG
    Inventors: Klaus Schmitt, Armin Singvogel, Helmuth Entenmann, Mogens Amstrup, Walter Klepetiko