Patents by Inventor Eckhard Kuhnhenne

Eckhard Kuhnhenne 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).

  • Shaped plastic article having a grained surface of improved scratch resistance
    Patent number: 5165982
    Abstract: The scratch resistance of plastic surfaces can be improved by providing the surfaces with a novel grain structure.
    Type: Grant
    Filed: September 17, 1990
    Date of Patent: November 24, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Franz Gubitz, Walter Grolik, Eckhard Kuhnhenne, Peter Jaksch