Patents by Inventor Frederik Gaag Van Der

Frederik Gaag Van Der 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).

  • Energy Absorbing Material
    Publication number: 20070249788
    Abstract: Energy absorbing material comprising polyolefin particles having as a continuous phase a copolymer of ethylene or propylene and one or more ?-olefin monomers, the copolymer having a density of at most 910 kg/ms and the particles having been formed by cutting at a temperature above the glass transition temperature of the polyolefin, and use of the energy absorbing material as infill material in synthetic grass structures.
    Type: Application
    Filed: July 20, 2005
    Publication date: October 25, 2007
    Inventors: Francois Buijsch Op Den, Wilhelmus Bruls, Leonardus Welzen, Gerardus Smit, Frederik Gaag Van Der, Marinus Olde Weghuis