Patents by Inventor Helmut Wassemann

Helmut Wassemann 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).

  • Publication number: 20050240144
    Abstract: A closing system is described and a correspondingly suitable method for the selective opening and closing of a tubular body organ, comprising a closing element and a regulating system controlling the closing element.
    Type: Application
    Filed: November 19, 2002
    Publication date: October 27, 2005
    Inventors: Helmut Wassemann, Sebastian Schostek, Chi-Nghia Ho