Patents by Inventor Edward J. van der Laan

Edward J. van der Laan 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: 5238516
    Abstract: Method for producing a material embodying an interference pattern, in which there is solvent-coated a transparent, thermoformable lacquer on one side of a base film, which lacquer is capable of forming a releasable direct bond with the base film. The lacquer is dried so as to form a solid lacquer layer. An interference pattern is formed by embossing the side of the solid lacquer layer which faces away from the base film with a printing device carrying the negative of the interference pattern. The embossed side of the lacquer layer is clad with a metal layer. A substrate is glued onto the metal layer, and the base film is released from the lacquer layer. A second base film is provided with a second transparent lacquer layer, and an interference pattern is introduced in this second lacquer layer. Then the second lacquer layer is applied by means of a transparent glue onto the first lacquer layer, and the second base film is removed.
    Type: Grant
    Filed: June 24, 1991
    Date of Patent: August 24, 1993
    Assignee: Koninklijke Emballage Industrie van Leer B.V.
    Inventors: Gijsbertus van Suylekom, Edward J. van der Laan