Patents by Inventor Christopher S. Yu

Christopher S. Yu 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).

  • Publication number: 20110302808
    Abstract: Methods and apparatus for walking support are provided. The walking support is comprised of a sole, a toe cover connected to the sole at the front of the sole, and a heel cup connected to the sole at the rear of the sole. The heel cup may have a vertical extension that extends upward to a cuff that wraps around the wearer's lower leg. The walking support may be worn over stockings with conventional shoes or boots, or may be incorporated into the footwear. A boot incorporating a walking support includes a lower leg cuff, which is closed in the same manner as the boot. A shoe incorporating a walking support does not incorporate a lower leg cuff.
    Type: Application
    Filed: June 14, 2010
    Publication date: December 15, 2011
    Inventors: David C. Yu, Christopher S. Yu