Patents by Inventor Louis Lamberts-Van Assche

Louis Lamberts-Van Assche 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).

  • Building materials
    Patent number: 5987831
    Abstract: A building product has an exposed surface provided by a multiplicity of linearly extending parallel asymmetric depressions of saw tooth configuration. Thus, a coloured exposed surface appearance apparently changes colour as relative positions of the building product and viewer change.
    Type: Grant
    Filed: December 31, 1997
    Date of Patent: November 23, 1999
    Assignee: Marlux N.V.
    Inventor: Louis Lamberts-Van Assche