Patents by Inventor Erich Stamm

Erich Stamm 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).

  • 1-phenyl 5-oxotetrazolines
    Patent number: 5138068
    Abstract: Novel 1-phenyl-5-oxo-2-tetrazolines of formula I ##STR1## in which R.sup.1 is C.sub.1 -C.sub.8 alkyl, C.sub.3 -C.sub.6 alkenyl, C.sub.3 -C.sub.6 alkynyl, C.sub.3 -C.sub.6 cycloalkyl, C.sub.5 -C.sub.6 cycloalkenyl, C.sub.1 -C.sub.4 alkyl- or halo-substituted C.sub.3 -C.sub.6 cycloalkyl, C.sub.1 -C.sub.4 alkyl- or halo-substituted C.sub.5 -C.sub.6 cycloalkenyl, halo-, C.sub.1 -C.sub.4 alkoxy- or phenyl-substituted C.sub.3 -C.sub.6 alkenyl, halo-, C.sub.1 -C.sub.4 alkoxy- or phenyl-substituted C.sub.3 -C.sub.8 alkynyl, or C.sub.1 -C.sub.8 alkyl that is substituted by halogen, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio, C.sub.1 -C.sub.4 alkoxycarbonyl, C.sub.3 -C.sub.6 cycloalkyl, phenyl, cyano, hydroxy, halophenyl, C.sub.1 -C.sub.4 alkylphenyl or by a heteroaromatic radical,R.sup.2 is C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkenyl, C.sub.2 -C.sub.6 alkynyl, C.sub.3 -C.sub.6 cycloalkyl, cyclopentenyl or cyclohexenyl, or is C.sub.1 -C.sub.6 alkyl that is substituted by halogen, by C.sub.1 -C.sub.
    Type: Grant
    Filed: May 22, 1991
    Date of Patent: August 11, 1992
    Assignee: Ciba-Geigy Corporation
    Inventors: Josef Ehrenfreund, Erich Stamm
  • Thioxotetrazolines and insecticidal use thereof
    Patent number: 5066667
    Abstract: Novel 1-phenyl-5-thioxo-2-tetrazolines of formula I ##STR1## in which R.sup.1 is C.sub.1 -C.sub.8 alkyl, C.sub.3 -C.sub.6 alkenyl, C.sub.3 -C.sub.6 alkynyl, C.sub.3 -C.sub.6 cycloalkyl, C.sub.5 -C.sub.6 -cycloalkenyl, C.sub.1 -C.sub.4 alkyl- or halo-substituted C.sub.3 -C.sub.6 cycloalkyl, C.sub.1 -C.sub.4 -alkyl- or halo-substituted C.sub.5 -C.sub.6 cycloalkenyl, halo-, C.sub.1 -C.sub.4 alkoxy- or phenyl-substituted C.sub.3 -C.sub.6 alkenyl, halo-, C.sub.1 -C.sub.4 alkoxy- or phenyl-substituted C.sub.3 -C.sub.8 alkynly, or C.sub.1 -C.sub.8 alkyl that is substituted by halogen, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio, C.sub.1 -C.sub.4 alkoxycarbonyl, C.sub.3 -C.sub.6 cycloalkyl, phenyl, cyano, hydroxy, halophenyl, C.sub.1 -C.sub.4 alkylphenyl or by a heteroaromatic radical.R.sup.2 is C.sub.1 -C.sub.6 alkyl, C.sub.2 -C.sub.6 alkenyl, C.sub.2 -C.sub.6 alkynyl, C.sub.3 -C.sub.6 cycloalkyl, cyclopentenyl or cyclohexenyl, or is C.sub.1 -C.sub.6 alkyl that is substituted by halogen, by C.sub.1 -C.sub.
    Type: Grant
    Filed: June 18, 1990
    Date of Patent: November 19, 1991
    Assignee: Ciba-Geigy Corporation
    Inventors: Josef Ehrenfreund, Erich Stamm
  • Pyrimidine-2-phenylamino derivatives
    Patent number: 4904778
    Abstract: The invention relates to ureas having a herbicidal and plant growth-regulating action of the formula ##STR1## in which R.sup.1 and R.sup.2 each represent, independently of the other, hydrogen, halogen, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.1 -C.sub.4 -alkoxycarbonyl, C.sub.1 -C.sub.4 -alkoxy-(C.sub.1 -C.sub.4)-alkyl, nitro or cyano, andR.sup.3 and R.sup.4 each represents, independently of the other, hydrogen, halogen, cyano, OH, SH, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -haloalkylthio, amino, mono-C.sub.1 -C.sub.4 -alkylamino, di-C.sub.1 -C.sub.4 -alkylamino, C.sub.1 -C.sub.4 -alkoxycarbonyl or C.sub.1 -C.sub.4 -alkoxy-(C.sub.1 -C.sub.4)-alkyl,processes and intermediates for the preparation thereof, and herbicidal and plant growth-regulating compositions containing a compound of the formula I.
    Type: Grant
    Filed: October 24, 1988
    Date of Patent: February 27, 1990
    Assignee: Ciba-Geigy Corp.
    Inventors: Hermann Rempfler, Erich Stamm, Rudolph C. Thummel
  • Ureas and their use as herbicides
    Patent number: 4802909
    Abstract: The invention relates to ureas having a herbicidal and plant growth-regulating action of the formula ##STR1## in which R.sup.1 and R.sup.2 each represents, independently of the other, hydrogen, halogen, C.sub.1 -C.sub.6 -alkyl C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.1 -C.sub.4 -alkoxycarbonyl, C.sub.1 -C.sub.4 -alkoxy-(C.sub.1 -C.sub.4)-alkyl, nitro or cyano, andR.sup.3 and R.sup.4 each represents, independently of the other, hydrogen, halogen, cyano, OH, SH, C.sub.1 -C.sub.6 -alkyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.1 -C.sub.4 -alkoxy, C.sub.1 -C.sub.4 -haloalkoxy, C.sub.1 -C.sub.4 -alkylthio, C.sub.1 -C.sub.4 -haloalkylthio, amino, mono-C.sub.1 -C.sub.4 -alkylamino, di-C.sub.1 -C.sub.4 -alkylamino, C.sub.1 -C.sub.4 -alkoxycarbonyl or C.sub.1 -C.sub.4 -alkoxy-(C.sub.1 -C.sub.4)-alkyl,processes and intermediates for the preparation thereof, and herbicidal and plant growth-regulating compositions containing a compound of the formula I.
    Type: Grant
    Filed: October 9, 1987
    Date of Patent: February 7, 1989
    Assignee: Ciba-Geigy Corporation
    Inventors: Hermann Rempfler, Erich Stamm, Rudolph C. Thummel