Patents by Inventor Robert G. Frykberg

Robert G. Frykberg 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: 5483757
    Abstract: A healing sandal includes a sole having a forward toe portion, a rearward heel portion, an upper surface, and a bottom surface for contacting the ground. An upper is attached at a bottom side thereof to the sole and extends upwardly therefrom. The upper has two side panels adjustably attached to one another and has an opening above the heel portion. A toe cover and tongue section can be removably attached to the upper. An insole insert is removably inserted within the sandal on the upper surface of the sole. The bottom surface of the sole includes a forward convexly curved surface and a rearward convexly curved surface which converge at an apex such that a rocking motion is achieved during walking for pressure reduction on the foot.
    Type: Grant
    Filed: February 3, 1994
    Date of Patent: January 16, 1996
    Inventor: Robert G. Frykberg