Patents by Inventor Josef Birke

Josef Birke 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: 5572808
    Abstract: An orthopedic shoe insert for correcting the adduction of the large toe is disclosed. The insert comprises generally a foot bed-like rear foot shell whose front edge lies approximately below the ball of the large toe and a corrective lobe molded on the side for supporting and guiding the large toe. The inside surface of the corrective lobe is slightly curved in a concave manner. Stiffening ribs are molded externally into the transition region between the corrective lobe and the rear foot shell. The lower edge of the corrective lobe is curved upwardly in order not to interfere with the rolling motion when walking. Because of the shaping and the use of elastic thermoplastic material, the corrective lobe is swiveled inwardly when walking, thereby actively correcting the malpositioning of the large toe.
    Type: Grant
    Filed: May 28, 1992
    Date of Patent: November 12, 1996
    Assignee: Solor Schuhforschung und Entwicklung-GmbH
    Inventor: Josef Birke