Patents by Inventor Henri E. Rosen

Henri E. Rosen 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).

  • Exercise apparatus
    Patent number: 3939932
    Abstract: A combination pedal and motor powered bicycle "moped" having a chain tension sensor attached to the throttle so that the rider can control the power output of the motor by the degree of force he exerts in pedalling.
    Type: Grant
    Filed: July 22, 1974
    Date of Patent: February 24, 1976
    Inventor: Henri E. Rosen