Patents by Inventor Jean-Claude Delmar

Jean-Claude Delmar 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).

  • Method for welding polycarbonate by high frequency
    Patent number: 5435878
    Abstract: The invention relates to a method for welding thermoweldable sheets of which at least one is made of polycarbonate. The method is characterized in that the sheets to be welded are separated from the metal electrodes (4,5) of the high frequency press by means of a glass plate (2,3). Application to the fabrication of high density magnetic cards.
    Type: Grant
    Filed: April 18, 1991
    Date of Patent: July 25, 1995
    Assignee: Gemplus S.C.A.
    Inventors: Jean-Claude Delmar, Christian Schmuckle