Patents by Inventor Carolin Kranz

Carolin Kranz 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).

  • Water-soluble Quinacridones
    Patent number: 6152968
    Abstract: The use of water-soluble quinacridones of the formula I ##STR1## where M.sup..sym. is a lithium, sodium, potassium or ammonium cation,R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently are hydrogen, C.sub.1 -C.sub.8 -alkyl, C.sub.1 -C.sub.8 -alkoxy, carboxyl, C.sub.1 -C.sub.4 -alkoxycarbonyl, sulfamoyl, mono- or di-(C.sub.1 -C.sub.4)-alkylsulfamoyl, carbamoyl, mono- or di-(C.sub.1 -C.sub.4)-alkylcarbamoyl, unsubstituted or substituted mono- or diphenylsulfamoyl, unsubstituted or substituted mono- or diphenylcarbamoyl, halogen, nitro or cyano,n is 0, 1 or 2 andm is 0, 1 or 2 and the sum n+m is at least 1,for dyeing and printing natural and synthetic fiber material.
    Type: Grant
    Filed: September 17, 1999
    Date of Patent: November 28, 2000
    Assignee: BASF Aktiengesellschaft
    Inventors: Karl-Heinz Etzbach, Carolin Kranz, Rudiger Sens