Patents by Inventor Erich Sohn

Erich Sohn 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: 5945541
    Abstract: The present invention relates to agents for protecting crop plants from the phytotoxic side effects of herbicides, which agents contain a compound of the formula I ##STR1## wherein Y denotes C--H or N,the symbols R.sub.1 independently of one another denote alkyl, halo-alkyl, alkoxy, haloalkoxy or halogen,R.sub.2 denotes alkyl or cycloalkyl,X denotes COOR.sub.3, CON(R.sub.4).sub.2, COSR.sub.3, CN or ##STR2## R.sub.3 denotes an alkali metal or alkaline earth metal, hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, or phenylalkyl, it being possible for phenyl to be substituted by halogen, or trialkylsilylalkyl or alkoxyalkyl,the symbols R.sub.4 independently of one another denote H, alkyl or cycloalkyl, which can be substituted, or 2 radicals R.sub.4 together with the N atom linking them form a 4- to 7-membered heterocyclic ring andn denotes 1 to 3, in combination with a herbicide.
    Type: Grant
    Filed: December 15, 1994
    Date of Patent: August 31, 1999
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Erich Sohn, Hilmar Mildenberger, Klaus Bauer, Hermann Bieringer
  • Patent number: 5703008
    Abstract: Compounds of the formula (I) ##STR1## where X, n, R.sup.1, R.sup.2 and R.sup.3 are as defined in claim 1 are suitable as antidotes against phytotoxic secondary effects of herbicides in crop plants without adversely affecting the action of the herbicides against harmful plants.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: December 30, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wolfgang Rosch, Erich Sohn, Klaus Bauer, Hermann Bieringer
  • Patent number: 5700758
    Abstract: Compounds of the formula (I) ##STR1## where X, n, R.sup.1, R.sup.2 and R.sup.3 are as defined in claim 1 are suitable as antidotes against phytotoxic secondary effects of herbicides in crop plants without adversely affecting the action of the herbicides against harmful plants.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 23, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Wolfgang Rosch, Erich Sohn, Klaus Bauer, Hermann Bieringer
  • Patent number: 5401700
    Abstract: The present invention relates to agents for protecting crop plants from the phytotoxic side effects of herbicides, which agents contain a compound of the formula ##STR1## wherein Y denotes C--H or N,the symbols R.sub.1 independently of one another denote alkyl, halo-alkyl, alkoxy, haloalkoxy or halogen,R.sub.2 denotes alkyl or cycloalkyl,X denotes COOR.sub.3, CON(R.sub.4).sub.2, COSR.sub.3, CN or ##STR2## R.sub.3 denotes an alkali metal or alkaline earth metal, hydrogen, alkyl, alkenyl, alkynyl, cycloalkyl, or phenylalkyl, it being possible for phenyl to be substituted by halogen, or trisalkylsilylalkyl or alkoxyalkyl,the symbols R.sub.4 independently of one another denote H, alkyl or cycloalkyl, which can be substituted, or radicals R.sub.4 together with the N atom linking them form a 4- to 7-membered heterocyclic ring andn denotes 1 to 3,in combination with a herbicide.
    Type: Grant
    Filed: July 13, 1992
    Date of Patent: March 28, 1995
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Erich Sohn, Hilmar Mildenberger, Klaus Bauer, Hermann Bieringer
  • Patent number: 5103017
    Abstract: Compounds of the formula (I) ##STR1## where X.sup.1 and X.sup.2 independently of one another are halogen or haloalkyl,R.sup.1 is hydrogen, alkyl or alkyloxyalkyl,R.sup.2 is alkyl or haloalkyl, andR.sup.3 is hydrogen, alkyl, alkenyl or alkynyl,can reduce, or entirely compensate, phytotoxic secondary effects of herbicides on crop plants and are therefore suitable as agents for the selective use of herbicides.
    Type: Grant
    Filed: June 27, 1991
    Date of Patent: April 7, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Erich Sohn, Wolfgang Rosch, Klaus Bauer, Hermann Bieringer
  • Patent number: 5082949
    Abstract: Compounds of the formula I ##STR1## in which R denotes halogen, hydroxyl, cyano, nitro, (substituted) alkyl, (substituted) alkoxy, (halo)alkylthio, carboxyl, alkoxycarbonyl; (halo)alkylsulf(inyl) (onyl) or -(onyloxy); (halo)phenyl or (halo)phenoxy; X in the 3- or 5-position denotes a (thio)carboxylic acid--or an optionally heterocyclic radical which is derived therefrom; Y denotes halogen, m denotes the number 0 or 1, and n denotes a number from 0 to 5, have valuable plant growth-regulating properties and are suitable, in addition, as safeners for protecting crop plants against phytotoxic side effects of herbicides.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: January 21, 1992
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Erich Sohn, Reinhard Handte, Hilmar Mildenberger, Helmut Burstell, Klaus Bauer, Hermann Bieringer
  • Patent number: 5037468
    Abstract: Compounds of the formula (I) ##STR1## where X.sup.1 and X.sup.2 independently of one another are halogen or haloalkyl,R.sup.1 is hydrogen, alkyl or alkoxyalkyl,R.sup.2 is alkyl or haloalkyl, andR.sup.3 is hydrogen, alkyl, alkenyl or alkynyl, can reduce, or entirely compensate, phytotoxic secondary effects of herbicides on crop plants and are therefore suitable as agents for the selective use of herbicides.
    Type: Grant
    Filed: July 16, 1990
    Date of Patent: August 6, 1991
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Erich Sohn, Wolfgang Rosch, Klaus Bauer, Hermann Bieringer
  • Patent number: 4925478
    Abstract: Compounds of the formula ##STR1## in which R.sub.n denotes hydrogen, halogen or alkyl, Z denotes oxygen or sulfur, R.sup.1 and R.sup.2, independently of one another, denote hydrogen, alkyl, alkoxyalkyl, haloalkyl or phenalkyl, or, together, denote a (optionally substituted) C.sub.2 -C.sub.4 -alkylene bridge, and R.sup.3 denotes hydrogen or alkyl, are effective antidotes for protecting crop plants against phytotoxic side effects of herbicides.
    Type: Grant
    Filed: July 21, 1987
    Date of Patent: May 15, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Erich Sohn, Reinhard Handte, Hilmar Mildenberger, Klaus Bauer, Hermann Bieringer
  • Patent number: 4891057
    Abstract: Compounds of the formula I ##STR1## in which R denotes halogen, hydroxyl, cyano, nitro, (substituted) alkyl, (substituted) alkoxy, (halo)alkylthio, carboxyl, alkoxycarbonyl; (halo)alkylsulf(inyl)(onyl) or -(onyloxy); (halo)phenyl or (halo)phenoxy; X in the 3- or 5-position denotes a (thio)carboxylic acid--or an optionally heterocyclic radical which is derived therefrom; Y denotes halogen, m denotes the number 0 or 1, and n denotes a number from 0 to 5, have valuable plant growth-regulating properties and are suitable, in addition, as safeners for protecting crop plants against phytotoxic side effects of herbicides.
    Type: Grant
    Filed: October 2, 1987
    Date of Patent: January 2, 1990
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Erich Sohn, Reinhard Handte, Hilmar Mildenberger, Helmut Burstell, Klaus Bauer, Hermann Bieringer