Patents by Inventor David K. Leonard

David K. Leonard 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).

  • Chiropractic articulating traction chair
    Patent number: 5437609
    Abstract: A mechanized traction chair is disclosed that employs a motor operated underarm support device that in combination with a restrictive seat belt provides forced traction to the upper torso. A lower seating assembly provides a variable articulating motion to the lower torso.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: August 1, 1995
    Inventors: David K. Leonard, John B. Bland