Patents by Inventor Rudolf Ringgenberg

Rudolf Ringgenberg 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).

  • Aromatic granulated material
    Patent number: 6056949
    Abstract: The present invention relates to a process for the preparation of spherical or substantially spherical, practically dust-free aromatic and odoriferous granulated material which is free-flowing, mechanically stable and has a narrow grain-size distribution.
    Type: Grant
    Filed: April 6, 1998
    Date of Patent: May 2, 2000
    Assignee: Givaudan Roure (International) SA
    Inventors: Heini Menzi, Matthias Perren, Rudolf Ringgenberg