Patents by Inventor Ken O. Richardson

Ken O. Richardson 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).

  • Exercising device
    Patent number: 4773399
    Abstract: A device for exercising the arms and legs of a person who has difficulty moving these limbs. The exerciser has a platform to which right and left arm exercising members are connected. Also connected to the platform is a drive shaft to which a pair of leg exercising members are affixed. The leg and arm exercising members are linked together and the device is driven by an adjustable motor to exercise the user.
    Type: Grant
    Filed: April 2, 1982
    Date of Patent: September 27, 1988
    Inventor: Ken O. Richardson