Patents by Inventor Herbert Klier

Herbert Klier 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).

  • Reactive diazo dyes, having a fibre reactive group containing a naphtylene middle component
    Patent number: 5403920
    Abstract: Reactive dyes of the formula ##STR1## in which A, U, R.sub.1, R.sub.2, Z and n are as defined in claim 1, are particularly suitable for dyeing or printing cellulosic fibre materials or naturally occurring or synthetic polyamide fibre materials with a high tinctorial yield and produce dyeings and prints with good fastness properties.
    Type: Grant
    Filed: July 19, 1993
    Date of Patent: April 4, 1995
    Assignee: Ciba-Geigy Corporation
    Inventors: Herbert Klier, Athanassios Tzikas