Patents by Inventor Keith E. Callanan

Keith E. Callanan 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: 6962570
    Abstract: A knee extension therapy apparatus is described. The apparatus is designed for use by a patient in a recumbent position having the foot of his leg to be treated elevated to a level above the surface upon which the patient user is resting. The knee extension therapy apparatus can be collapsed for easy transport.
    Type: Grant
    Filed: September 9, 2002
    Date of Patent: November 8, 2005
    Inventors: Keith E. Callanan, K. Donald Shelbourne
  • Publication number: 20040049135
    Abstract: A knee extension therapy apparatus is described. The apparatus is designed for use by a patient in a recumbent position having the foot of his leg to be treated elevated to a level above the surface upon which the patient user is resting. The knee extension therapy apparatus can be collapsed for easy transport.
    Type: Application
    Filed: September 9, 2002
    Publication date: March 11, 2004
    Inventors: Keith E. Callanan, K. Donald Shelbourne