Patents by Inventor Tony Redpath

Tony Redpath 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: 5649874
    Abstract: A transparent sphere comprised of a hardened polymeric resin has an insert provided therein. The sphere is prepared such that there is no air gap between the polymeric resin and the insert. The insert is sized to provide an apparent size of the insert which appears to be substantially the same as the diameter of the sphere and to maintain the structural integrity of the sphere under normal conditions of use of the sphere.
    Type: Grant
    Filed: August 5, 1996
    Date of Patent: July 22, 1997
    Assignee: Marble Vision Inc.
    Inventors: Stephen J. Headford, Ilse Treurnicht, Tony Redpath, Tom Clarke