Patents by Inventor Manfred Daubitz

Manfred Daubitz 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 natural or synthetic polyamides
    Patent number: 4979962
    Abstract: Natural and synthetic polyamides are dyed with the betaines of 1:1 chromium complexes of sulfo-containing azo or azomethine dyes from an aqueous liquor.
    Type: Grant
    Filed: May 26, 1989
    Date of Patent: December 25, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Klaus Grychtol, Manfred Daubitz