Patents by Inventor Todd Duncan Campbell

Todd Duncan Campbell 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).

  • Unitary orthotic insert and orthopedic insole
    Publication number: 20020162250
    Abstract: The invention provides a unitary orthotic insert for a shoe that comprises a cupped heel portion having a concave upper bearing surface and a midfoot portion having a medial longitudinal arch support with a curvilinear upper bearing surface. The cupped heel portion extends above a most posterior cephalad portion of a calcaneus and is continuously coupled to the midfoot portion.
    Type: Application
    Filed: April 30, 2002
    Publication date: November 7, 2002
    Inventors: Todd Duncan Campbell, Russell Craig Davis, William Yeager Guthrie