Patents by Inventor Phil Skipper

Phil Skipper 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).

  • Security document validation
    Patent number: 6438262
    Abstract: Method and apparatus for validating banknotes. In some countries, genuine banknotes are provided with a security thread embedded in the banknote, but partially exposes at regularly spaced regions along its length by windows. The windows have a width greater that the security strip itself. The increased transmissivity of the banknote in the infrared region is utilized to detect the presence of such windows to validate the banknote. If the required variation in transmissivity is not detected, the banknote can be rejected as a countefeit.
    Type: Grant
    Filed: April 14, 1999
    Date of Patent: August 20, 2002
    Assignee: Mars Incorporated
    Inventors: Ronald Bernardini, John Gorczyca, Phil Skipper