Patents by Inventor Henry E. Pfister

Henry E. Pfister 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).

  • Shoe, ankle orthosis and method for protecting the ankle
    Patent number: 6692454
    Abstract: A method for protecting the ankle against injury, limit subtalar joint motion of the ankle by controlling the motions of segments of the subtalar joint fore and aft of the subtalar joint while permitting motion of the foot about the ankle joint with an improved athletic shoe, ankle orthosis. A supporting structure a part of or connected to the shoe or orthosis is preferably in the form of a heel-sole counter provided about the heel and at least a portion of the foot forward of the subtalar joint which includes a split toe sole extension. The supporting structure has a semi-rigid shape retaining character which is not collapsible vertically and which together with the shoe or orthosis limits torsional movement of the foot about the longitudinal axis of the subtalar joint as seen in a top plan view thereof by an upwardly extending portion thereof which acts as a torsion bar that is, in turn, secured to the lower leg.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: February 17, 2004
    Inventors: Barry W. Townsend, Henry E. Pfister
  • Shoe, ankle orthosis and method for protecting the ankle
    Patent number: 6270468
    Abstract: An improved athletic shoe, ankle orthosis and method for protecting the ankle against injury, limit subtalar joint motion of the ankle by controlling the motions of segments of the subtalar joint fore and aft of the subtalar joint while permitting motion of the foot about the ankle joint. A supporting structure a part of or connected to the shoe or orthosis is preferably in the form of a heel-sole counter provided about the heel and at least a portion of the foot forward of the subtalar joint. The supporting structure has a semi-rigid shape retaining character which is not collapsible vertically and which together with the shoe or orthosis limits torsional movement of the foot about the longitudinal axis of the subtalar joint as seen in a top plan view thereof by an upwardly extending portion thereof which acts as a torsion bar that is, in turn, secured to the lower leg.
    Type: Grant
    Filed: June 29, 2000
    Date of Patent: August 7, 2001
    Inventors: Barry W. Townsend, Henry E. Pfister
  • Shoe, ankle orthosis and method for protecting the ankle
    Patent number: 6228043
    Abstract: An improved athletic shoe, ankle orthosis and method for protecting the ankle against injury, limit subtalar joint motion of the ankle by controlling the motions of segments of the subtalar joint fore and aft of the subtalar joint while permitting motion of the foot about the ankle joint. A supporting structure a part of or connected to the shoe or orthosis is preferably in the form of a heel-sole counter provided about the heel and at least a portion of the foot forward of the subtalar joint. The supporting structure has a semi-rigid shape retaining character which is not collapsible vertically and which together with the shoe or orthosis limits torsional movement of the foot about the longitudinal axis of the subtalar joint as seen in a top plan view thereof by an upwardly extending portion thereof which acts as a torsion bar that is, in turn, secured to the lower leg.
    Type: Grant
    Filed: July 18, 1997
    Date of Patent: May 8, 2001
    Inventors: Barry W. Townsend, Henry E. Pfister