Patents by Inventor Walter Kriegner

Walter Kriegner 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).

  • Foam body and process for the production thereof
    Patent number: 4007556
    Abstract: A foam body, for example in the form of a mat, strip, square or the like, consisting of pieces of polyurethane foam held together by a bonding agent, which may be foamed, e.g. porous polyurethane, characterized in that plant seeds are contained in the foam body.
    Type: Grant
    Filed: May 14, 1973
    Date of Patent: February 15, 1977
    Assignee: Semperit Aktiengesellschaft
    Inventors: Maternus Gluck, Walter Kriegner, Bernhard Eder