Patents by Inventor Harald Doerr

Harald Doerr 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).

  • Composite material containing a core-covering particle
    Patent number: 7291394
    Abstract: The invention relates to composite materials having an optical effect, comprising at least one moulding which essentially consists of core/shell particles whose shell forms a matrix and whose core is essentially solid and has an essentially monodisperse size distribution, where a difference exists between the refractive indices of the core material and of the shell material, and at least one further material which determines the mechanical properties of the composite, and to a process for the production of the composite materials. The materials according to the invention exhibit a viewing angle-dependent colour effect with freely adjustable mechanical properties.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: November 6, 2007
    Assignee: Merck Patent GmbH
    Inventors: Holger Winkler, Guenther Vulpius, Tilmann Ruhl, Goetz Hellmann, Harald Doerr
  • Composite material containing a core-covering particle
    Publication number: 20050228072
    Abstract: The invention relates to composite materials having an optical effect, comprising at least one moulding which essentially consists of core/shell particles whose shell forms a matrix and whose core is essentially solid and has an essentially monodisperse size distribution, where a difference exists between the refractive indices of the core material and of the shell material, and at least one further material which determines the mechanical properties of the composite, and to a process for the production of the composite materials. The materials according to the invention exhibit a viewing angle-dependent colour effect with freely adjustable mechanical properties.
    Type: Application
    Filed: May 19, 2003
    Publication date: October 13, 2005
    Inventors: Holger Winkler, Guenther Vulpius, Tilmann Ruhl, Goetz Hellmann, Harald Doerr