Patents by Inventor Willi Dungl

Willi Dungl 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).

  • Foot massage mat
    Patent number: 4329981
    Abstract: A foot massage mat formed of rubber, plastics material or the like wherein the mat possesses hill-like protuberances.
    Type: Grant
    Filed: January 28, 1980
    Date of Patent: May 18, 1982
    Assignee: Semperit AG
    Inventor: Willi Dungl