Patents by Inventor Axel von Daacke

Axel von Daacke 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).

  • Materials coated with plate-like pigments
    Patent number: 5223360
    Abstract: Materials coated with plate-like pigments and characterized in that the coating shows structuring in defined areas due to a difference in the orientation of the pigment particles are highly suitable in the area of general security printing.
    Type: Grant
    Filed: November 15, 1990
    Date of Patent: June 29, 1993
    Assignee: Merck Patent Gesellschaft mit beschrankter Haftung
    Inventors: Constanze Prengel, Klaus-Dieter Franz, Hartmut Hartner, Manfred Kieser, Axel von Daacke, Klaus Bernhardt