Patents by Inventor Frank Ambrose

Frank Ambrose 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).

  • Adjustable foot supported lifts
    Patent number: 5226247
    Abstract: An electrical insole or outsole is provided to increase foot support. The insole is attached to the top of the sole body, whereas the outsole is attached to the bottom of the sole body. The insole or outsole has a raised front portion to shift some weight rearward to the center of the foot. The back portion of the insole is either raised or lowered, depending on the shoe heel height, to shift some weight forward to the center of the foot.
    Type: Grant
    Filed: March 22, 1991
    Date of Patent: July 13, 1993
    Inventor: Frank Ambrose
  • Sole body for shoes with upwardly deformable arch-supporting segment
    Patent number: 4372059
    Abstract: This shoe sole has a resiliently deformable, arch-supporting middle segment extending between a heel-supporting rear segment and a toe-supporting front segment. The middle segment has an upwardly projecting, longitudinally convex, top face and a downwardly projecting, longitudinally convex, bottom face which, when flattened by the wearer's weight, pushes the top face up against the wearer's arch.
    Type: Grant
    Filed: March 4, 1981
    Date of Patent: February 8, 1983
    Inventor: Frank Ambrose