Patents by Inventor Udo Arenz

Udo Arenz 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).

  • Mixtures of Red Vat Dyes, Method for the Production Thereof and Their Use for Dying Material Containing Hydroxy Groups
    Publication number: 20080189881
    Abstract: The present invention relates to dye mixtures comprising the dye C.I. Vat Red 13 and at least one dye selected from the group consisting of C.I. Vat Red 1, C.I. Vat Red 10, C.I. Vat Red 14, C.I. Vat Red 15, C.I. Vat Red 23 and C.I. Vat Red 32, their production and their use for dyeing and printing hydroxyl-containing materials.
    Type: Application
    Filed: June 6, 2006
    Publication date: August 14, 2008
    Applicant: DyStar Textilfarben GmbH & Co. Deutschland KG
    Inventors: Gunther Widler, Udo Arenz, Stefan Meier, Claus Marschner