Patents by Inventor Francis Massie

Francis Massie 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).

  • Flexible card with validity checking device
    Patent number: 5566982
    Abstract: An identity card or credit card type of card is equipped with a validity-checking device that makes it possible to do away with the use of complementary, sophisticated checking equipment. It results from the association of a structure S.sub.1 comprising at least one layer of piezoelectric material and a structure S.sub.2 comprising a material capable of switching electrically between two optical states (I) and (II) that are different in terms of ocular perception. During the bending of the card, the validity or non-validity of the card can be attested to by the appearance or non-appearance of the validity of the card.
    Type: Grant
    Filed: July 15, 1994
    Date of Patent: October 22, 1996
    Assignee: Idmatics S. A.
    Inventors: Jean C. Lehureau, Francis Massie, Claude Bricot