Patents by Inventor Diane Vertruyen

Diane Vertruyen 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 comprising a mixture of polyurethanes
    Patent number: 6326082
    Abstract: According to the present invention there is provided a laminating element comprising a transparent support coated with a thermally non-reversible layer comprising an ethylene-acrylic acid copolymer, a first polyurethane polymer and a second polyurethane polymer, said layer having a pH of at least 10 and containing a metallic or an amphoteric cation.
    Type: Grant
    Filed: March 3, 2000
    Date of Patent: December 4, 2001
    Assignee: Agfa-Gevaert
    Inventors: Leo Vermeulen, Michel Boulonne, Walther Wouters, Diane Vertruyen, Huub Van Aert
  • Optical card comprising an imaged layer
    Patent number: 6284350
    Abstract: According to the present invention there is provided an imaged element comprising an optical card and underneath a layer package comprising in the order given an optional image receiving layer, a prelayer, an interlayer and a transparent support, at least the optional image receiving layer or the prelayer comprising an image, characterized in that the interlayer contains a polyurethane and a cross-linking agent.
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: September 4, 2001
    Assignee: Agfa-Gevaert
    Inventors: Leo Vermeulen, Michel Boulonne, Walther Wouters, Diane Vertruyen