Patents by Inventor August Bauer

August Bauer 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 reactive dyestuffs of the monoazo series containing an active methylene coupling component
    Patent number: 3957751
    Abstract: Water-soluble monoazo-dyestuff of the formula ##EQU1## in which W is --CN or --CO--NH.sub.2, A is (.beta.-sulfatoethylsulfonyl)-phenylene, (.beta.-sulfatoethylsulfonyl)-di(lower) alkyl-phenylene, (.beta.-sulfatoethylsulfonyl)-lower alkyl-lower alkoxy-phenylene, (.beta.-sulfatoethylsulfonyl)-lower alkoxy-phenylene, (.beta.-sulfatoethylsulfonyl)-monosulfo-naphthylene, monosulfo-di(lower) alkoxy-phenylene, monosulfo-lower alkoxy-lower alkyl-phenylene, disulfo-phenylene or disulfo-naphthylene, and B is disulfo-phenylene, monosulfo-di(lower) alkoxy-phenylene, monosulfo-lower alkxoy-lower-alkyl-phenylene, disulfo-lower alkoxy-phenylene, disulfo-naphthylene, trisulfo-naphthylene, (.beta.-sulfatoethylsulfonyl)-lower alkoxy-lower alkyl-phenylene, (.beta.-sulfatoethylsulfonyl)-lower alkoxy-phenylene, (.beta.
    Type: Grant
    Filed: January 10, 1973
    Date of Patent: May 18, 1976
    Assignee: Hoechst Aktiengesellschaft
    Inventors: August Bauer, Ernst Hoyer