Patents by Inventor Jean-Pierre Vierling

Jean-Pierre Vierling 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).

  • Dyeing of Wool Fibres
    Publication number: 20090158534
    Abstract: The present invention relates to a process for dyeing fibre materials composed of wool wherein an alkoxylated and quaternized fatty acid amine, preferably a quaternized, ethoxylated oleylamine, is used as a levelling agent. The present compound leads to very uniform dyeings and is very effective in low concentrations.
    Type: Application
    Filed: September 29, 2006
    Publication date: June 25, 2009
    Inventors: Manfred Jungen, Jean-Pierre Vierling, Udo Schmitt, Rino Marazzi