Patents by Inventor Stephan Kussmaul

Stephan Kussmaul 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).

  • Mechanical watch having constant spring force
    Patent number: 8550701
    Abstract: A mechanical watch comprises a motive spring in a first spring barrel and a mechanical and/or automatic winding device. A second spring barrel and a differential having three drive trains are provided, wherein the train connected to the winding device acts on the first and second spring barrels in the same direction.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: October 8, 2013
    Assignee: Eterna AG Uhrenfabrik
    Inventors: Patrick Kury, Stephan Kussmaul
  • Mechanical Watch Having Constant Spring Force
    Publication number: 20100254229
    Abstract: A mechanical watch comprises a motive spring in a first spring barrel and a mechanical and/or automatic winding device. A second spring barrel and a differential having three drive trains are provided, wherein the train connected to the winding device acts on the first and second spring barrels in the same direction.
    Type: Application
    Filed: October 22, 2008
    Publication date: October 7, 2010
    Applicant: ETERNA AG UHRENFABRIK
    Inventors: Patrick Kury, Stephan Kussmaul