Patents by Inventor Hans Altorfer

Hans Altorfer 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).

  • Roller skis
    Patent number: 4102541
    Abstract: A roller ski comprising a reverse motion-blocking device composed of an articulated pendulum support which engages with the ground during reverse or rearward travel.
    Type: Grant
    Filed: February 3, 1977
    Date of Patent: July 25, 1978
    Assignee: Altorfer AG Metall- und Apparatebau
    Inventors: Hans Altorfer, Oscar Knoll