Patents by Inventor Constantijn Hemel

Constantijn Hemel 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 Producing A Layered Material And A Layered Material
    Publication number: 20070202303
    Abstract: A method is provided for producing a layered material. This method includes the steps of impregnating a substrate with a thermosetting resin and further impregnating or coating the so impregnated substrate with a dispersion comprising thermally expandable microspheres.
    Type: Application
    Filed: May 19, 2004
    Publication date: August 30, 2007
    Inventors: Monika Bischoff, Alexandra Bruns, Michael Guth, Constantijn Hemel, Thomas Kronke, Thomas Thews, Detlef Wentzel