Patents by Inventor Donald Stalnaker

Donald Stalnaker 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).

  • Patent number: 8915828
    Abstract: The present invention provides an ergonomic, rotational muscle stretching device and method for use by an individual to rehabilitate one or more muscles groups after injury or surgery, or for use by an individual for general muscle exercise purposes. The device and method allow for stretching, strengthening, and increasing flexibility of the one or more muscle groups while placing minimal stress and/or strain on associated joints due to the ability of the device to ergonomically rotate along x, y and z axes in tandem with the joints associated with the muscles being exercised, i.e., the device effectively mimics motion of the joints. This allows joints to move freely through their full range of motion so that a complete, symmetrical stretch of the exercised muscles is achieved without placing negative stress and/or strain on the joints.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: December 23, 2014
    Inventors: Donald Stalnaker, Steve McIntyre