Patents by Inventor Karoly Karman

Karoly Karman 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: 4756530
    Abstract: A puzzle game or toy is disclosed comprising two spherical shells made of hard plastic or metal material and having over their surface a multiplicity of circular holes cut therein in a random pattern, the holes being of equal diameter with the exception of one hole having a slightly larger diameter. The second spherical shell has an inner diameter slightly larger than the diameter of the first spherical shell and mounted over the first shell such that the two shells are freely rotatable relative to each other. A spherical ball of metal or plastic is positioned inside the two spherical shells and is of a diameter such that it will pass through the two large holes but none of the other holes.
    Type: Grant
    Filed: July 7, 1987
    Date of Patent: July 12, 1988
    Inventor: Karoly Karman