Patents by Inventor Gunther Auerbach

Gunther Auerbach 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).

  • Patent number: 5527886
    Abstract: Fiber-reactive compounds of the formulaX-O.sub.2 S-W.sub.1 [F.sub.c ]W.sub.2 -NR-Z,and water-soluble salts thereof each cation of which is independently a non-chromophoric cation, and mixtures of such compounds or water-soluble salts,whereinFc is a chromophore-containing radical of a monoazo, disazo, polyazo, formazan, anthraquinone, dioxazine, phenazine or azomethine dye, which is in metal-free or metal complex form,each of W.sub.1 and W.sub.2 is independently a direct bond or a bridging group which is attached to a carbon atom of an aromatic carbocyclic ring or to a carbon or nitrogen atom of an aromatic heterocyclic ring present in F.sub.c,X is --CH.dbd.CH.sub.2 or --C.sub.2-4 alkylene--Y, wherein Y is hydroxy or a group which can be split off under alkaline conditions,R is hydrogen, C.sub.1-4 alkyl or C.sub.1-4 alkyl monosubstituted by hydroxy, halo, cyano, --SO.sub.3 H, --OSO.sub.3 H or --COOH, andZ is ##STR1## with the provisos as set forth herein.
    Type: Grant
    Filed: June 16, 1992
    Date of Patent: June 18, 1996
    Assignee: Sandoz Ltd.
    Inventors: Gunther Auerbach, Markus Dorr, Paul Doswald, Markus Gisler, Werner Koch, Helmut A. Moser, Roland Wald
  • Patent number: 5227477
    Abstract: Metal-free compounds of the formula ##STR1## a 1:1 or 1:2 metal complex of a metallizable compound of said formula or a salt of a metal-free compound of said formula or of a 1:1 or 1:2 metal complex thereof each cation of which is independently a non-chromophoric cation, or a mixture, thereof, whereinF.sub.c is the radical of a water-soluble azo, formazan, phthalocyanine, azomethine, oxazine, thiazine, phenazine or triphenylmethane dye,each W is independently --NR.sub.1 --B.sub.1 --NR.sub.1 --, ##STR2## wherein B.sub.1 is linear or branched C.sub.2-6 alkylene; linear or branched C.sub.2-6 alkylene interrupted by --O-- or --NR.sub.1 --; linear or branched C.sub.3-6 alkylene monosubstituted by hydroxy or carboxy or disubstituted by hydroxy, ##STR3## wherein R.sub.2 is hydrogen, C.sub.1-4 alkyl, C.sub.1-4 alkoxy, carboxy or sulfo, andn is 0, 1, 2, 3 or 4, andm is 0 or 1,each X is independently a direct bond, --CO-- or --SO.sub.
    Type: Grant
    Filed: July 26, 1991
    Date of Patent: July 13, 1993
    Assignee: Sandoz Ltd.
    Inventors: Gunther Auerbach, Kurt Brenneisen, Markus Doerr, Paul Doswald, Markus Gisler, Werner Koch, Helmut A. Moser, Roland Wald
  • Patent number: 4840642
    Abstract: Compounds of the formula ##STR1## and salts thereof, useful for dyeing and printing hydroxy group - or nitrogen-containing organic substrates, for example, leather and fibrous materials containing or consisting of natural or synthetic polyamides or natural or regenerated cellulose; preferably textile material containing or consisting of cotton which is preferably dyed using the exhaust dyeing method.
    Type: Grant
    Filed: September 4, 1987
    Date of Patent: June 20, 1989
    Assignee: Sandoz Ltd.
    Inventors: Gunther Auerbach, Helmut A. Moser