Patents by Inventor Rolf Schurter

Rolf Schurter 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: 4412856
    Abstract: The novel compounds of the formula I are useful selective herbicides for postemergence application in crops of cereals, maize and rice.In formula I, ##STR1## A is an unsubstituted or substituted amino group, Q is a C.sub.2 -C.sub.6 alkylene bridge, Y is an oxygen or sulfur atom or an unsubstituted or substituted nitrogen atom, and Z is an unsubstituted or substituted phenyl, naphthyl or heterocyclic radical, which phenyl radical, containing the bridge member Y, can additionally carry one to four further substituents.
    Type: Grant
    Filed: May 22, 1981
    Date of Patent: November 1, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans-Georg Brunner, Rolf Schurter, Henry Szczepanski
  • Patent number: 4404020
    Abstract: This invention relates to 3-pyridinol compounds corresponding to formula I ##STR1## wherein A is halogen, alkyl or cyanoB is halogenQ is an aliphatic bridge that can also be unsaturated, branched or substitutedR is hydrogen, an aliphatic, cycloaliphatic, aromatic or heterocyclic radical, a metal ion or a quaternary ammonium group,Z is oxygen or sulfur,processes for producing them, their use for regulating plant growth, and to compositions containing these compounds.
    Type: Grant
    Filed: November 20, 1981
    Date of Patent: September 13, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Rolf Schurter, Niels Clauson-Kaas, Hermann Rempfler
  • Patent number: 4397680
    Abstract: A class of herbicidal unsaturated esters of .alpha.-[4-(3',5'-dihalogeno-pyridyl-2'-oxy)-phenoxy]-propionic and -thiolpropionic acid of the formula ##STR1## wherein Hal is chlorine or bromine, X is oxygen or sulfur, and R is an unsubstituted or halogenated aliphatic or alicyclic radical which may contain nitrogen, and which possesses at least one double and/or triple bond, with the proviso that if X is oxygen, R is not an unsubstituted alkenyl radical. These new esters are useful for selective post-emergent control of grassy weeds in cultivated plants such as wheat, barley, rice and soybean.
    Type: Grant
    Filed: July 2, 1981
    Date of Patent: August 9, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Beat Bohner, Hermann Rempfler, Rolf Schurter
  • Patent number: 4394156
    Abstract: The present invention relates to novel active compounds having a plant growth-inhibiting and herbicidal action and their preparation and to agents containing these active ingredients, and their use.The novel active compounds are saturated and unsaturated 4-membered to 7-membered ring nitrogen heterocyclic compounds which are substituted on the nitrogen atom by a phenyl radical which itself carries a trifluoromethanesulphonamido group -NH-SO.sub.2 -CF.sub.3 as a substituent. The phenyl radical can also carry other substituents and the heterocyclic structure can also be substituted. Oxo derivatives of the heterocyclic compound, in which the oxo group is preferably adjacent to the nitrogen atom, form a preferred sub-group of compounds.
    Type: Grant
    Filed: October 26, 1981
    Date of Patent: July 19, 1983
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans Tobler, Werner Fory, Rolf Schurter
  • Patent number: 4347372
    Abstract: A process for protecting cultivated plants against aggressive agricultural chemicals is described in which oxime derivatives of the formula ##STR1## are used as antidotes. Either the cultivated area for the cultivated plants or the cultivated plants themselves or parts of the plant (seeds, tubers, stem parts and the like), as desired, can be treated with these oxime derivatives, which are used as a dressing.
    Type: Grant
    Filed: August 28, 1979
    Date of Patent: August 31, 1982
    Assignee: Ciba-Geigy Corporation
    Inventors: Alfons Lukaszczyk, Henry Martin, Peter J. Diel, Werner Fory, Karl Gatzi, Haukur Kristinsson, Beat Muller, Rene Muntwyler, Johannes P. Pachlatko, Hermann Rempfler, Rolf Schurter, Henry Szczepanski
  • Patent number: 4340415
    Abstract: Esters of 1,2-diphenyl-cyclohex-1-ene-4-carboxylic-acid are effective plant growth regulating agents. They are useful for controlling wild oats in cereal cultures and for growth inhibition in different cultures, e.g. for the inhibition of suckers in tobacco plants.
    Type: Grant
    Filed: May 19, 1980
    Date of Patent: July 20, 1982
    Assignee: Ciba-Geigy Corporation
    Inventors: Verena Laanio, Werner Fory, Rolf Schurter
  • Patent number: 4340747
    Abstract: Esters of 1,2-diphenyl-cyclohex-1-ene-4-carboxylic-acid are effective plant growth regulating agents. They are useful for controlling wild oats in cereal cultures and for growth inhibition in different cultures, e.g. for the inhibition of suckers in tobacco plants.
    Type: Grant
    Filed: May 19, 1980
    Date of Patent: July 20, 1982
    Assignee: Ciba-Geigy Corporation
    Inventors: Verena Laanio, Werner Fory, Rolf Schurter
  • Patent number: 4325729
    Abstract: The present invention concerns new .alpha.-[4-(5'-trifluoromethyl-pyrid-2'-yl)oxy-phenoxy]-propionic-acid derivatives of the formula ##STR1## wherein R.sub.1 and R.sub.2 independently are hydrogen, halogen, cyano or lower alkyl, andZ is a radical --COR.sub.3 or a 2-oxazoline group, whereby R.sub.3 is the hydroxyl group or a salt form thereof, or is an ester, thioester, amide or hydrazide group on said propionic acid.These new propionic acid derivatives have herbicidal and plant growth regulating activity and may be worked up into compositions containing them.
    Type: Grant
    Filed: November 13, 1980
    Date of Patent: April 20, 1982
    Assignee: Ciba-Geigy Corporation
    Inventors: Hermann Rempfler, Rolf Schurter, Werner Fory
  • Patent number: 4300944
    Abstract: A class of herbicidal unsaturated esters of .alpha.-[4-(3',5'-dihalogeno-pyridyl-2'-oxy)-phenoxy]-propionic and -thiolpropionic acid of the formula ##STR1## wherein Hal is chlorine or bromine, X is oxygen or sulfur, and R is an unsubstituted or halogenated aliphatic or alicyclic radical which may contain nitrogen, and which possesses at least one double and/or triple bond, with the proviso that if X is oxygen, R is not an unsubstituted alkenyl radical. These new esters are useful for selective post-emergent control of grassy weeds in cultivated plants such as wheat, barley, rice and soybean.
    Type: Grant
    Filed: January 12, 1979
    Date of Patent: November 17, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Beat Bohner, Hermann Rempfler, Rolf Schurter
  • Patent number: 4294606
    Abstract: The present invention relates to novel active compounds having a plant growth-inhibiting and herbicidal action and their preparation and to agents containing these active ingredients, and their use.The novel active compounds are saturated and unsaturated 4-membered to 7-membered ring nitrogen heterocyclic compounds which are substituted on the nitrogen atom by a phenyl radical which itself carries a trifluoromethanesulphonamido group --NH--SO.sub.2 --CF.sub.3 as a substituent. The phenyl radical can also carry other substituents and the heterocyclic structure can also be substituted. Oxo derivatives of the heterocyclic compound, in which the oxo group is preferably adjacent to the nitrogen atom, form a preferred sub-group of compounds.
    Type: Grant
    Filed: January 14, 1980
    Date of Patent: October 13, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans Tobler, Werner Fory, Rolf Schurter
  • Patent number: 4253866
    Abstract: The present invention concerns pyridyloxy-phenoxy-alkanecarboxylic acid derivatives of the formula ##STR1## wherein A is hydrogen, halogen, alkyl, alkoxy, cyano, nitro or carbothiamideB is hydrogen, halogen, alkyl, cyano, mono- or dialkylamino, alkoxy-carbonyl or carbothiamideC is hydrogen, halogen, cyano, nitro or carbothiamideD is hydrogen, halogen, alkyl, mono- or dialkylaminoR.sub.1 is hydrogen, alkyl, alkoxyalkyl or benzylR is the rest of the acid a salt or an ester,with the proviso that if the pyridine ring is substituted by halogen and/or alkyl and C is also halogen, then the radicals A, B and D must contain no less than two halogen atoms or alkyl radicals.These derivatives have herbicidal and plant-growth regulating activity.
    Type: Grant
    Filed: November 20, 1978
    Date of Patent: March 3, 1981
    Assignee: Ciba-Geigy Corporation
    Inventors: Rolf Schurter, Hermann Rempfler
  • Patent number: 4229207
    Abstract: Esters of 1,2-diphenyl-cyclohex-1-ene-4-carboxylic-acid are effective plant growth regulating agents. They are useful for controlling wild oats in cereal cultures and for growth inhibition in different cultures, e.g. for the inhibition of suckers in tobacco plants.
    Type: Grant
    Filed: June 22, 1978
    Date of Patent: October 21, 1980
    Assignee: Ciba-Geigy Corporation
    Inventors: Verena Laanio, Werner Fory, Rolf Schurter
  • Patent number: 4213774
    Abstract: Pridyloxy-phenoxy-propionic acid-amino-alkyl esters having a herbicidal action, their production, compositions containing them, and the use thereof are described. The esters correspond to the formula ##STR1## in which X is halogen or trifluoromethyl,Y is hydrogen, halogen or trifluoromethyl,Z is oxygen or sulfur,"alkylene" is a straight-chain or branched-chain C.sub.2 -C.sub.6 alkyl group, andQ is an amino or ammonium group.
    Type: Grant
    Filed: January 22, 1979
    Date of Patent: July 22, 1980
    Assignee: Ciba-Geigy Corporation
    Inventors: Rolf Schurter, Hermann Rempfler, Beat Bohner
  • Patent number: 4208202
    Abstract: The present invention relates to novel active compounds having a plant growth-inhibiting and herbicidal action and their preparation and to agents containing these active ingredients, and their use.The novel active compounds are saturated and unsaturated 4-membered to 7-membered ring nitrogen heterocyclic compounds which are substituted on the nitrogen atom by a phenyl radical which itself carries a trifluoromethanesulphonamido group --NH--SO.sub.2 --CF.sub.3 as a substituent. The phenyl radical can also carry other substituents and the heterocyclic structure can also be substituted. Oxo derivatives of the heterocyclic compound, in which the oxo group is preferably adjacent to the nitrogen atom, form a preferred sub-group of compounds.
    Type: Grant
    Filed: April 12, 1978
    Date of Patent: June 17, 1980
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans Tobler, Werner Fory, Rolf Schurter
  • Patent number: 4190433
    Abstract: Esters of 1,2-diphenyl-cyclohex-1-ene-4-thiocarboxylic-acid are effective plant growth regulating agents. They are useful for controlling wild oats in cereal cultures and for growth inhibition in different cultures, e.g. for the inhibition of suckers in tobacco plants.
    Type: Grant
    Filed: June 22, 1978
    Date of Patent: February 26, 1980
    Assignee: Ciba-Geigy Corporation
    Inventors: Verena Laanio, Werner Fory, Rolf Schurter
  • Patent number: 4133675
    Abstract: The present invention concerns new pyridyloxy-phenoxy-alkanecarboxylic acid derivatives of the formula ##STR1## wherein A is hydrogen, halogen, alkyl, alkoxy, cyano, nitro or carbothiamideB is hydrogen, halogen, alkyl, cyano, mono- or dialkylamino, alkoxy-carbonyl or carbothiamideC is hydrogen, halogen, cyano, nitro or carbothiamideD is hydrogen, halogen, alkyl, mono- or dialkylaminoR.sub.1 is hydrogen, alkyl, alkoxyalkyl or benzyl R is the rest of the acid a salt or an ester,With the proviso that if the pyridine ring is substituted by halogen and/or alkyl and C is also halogen, then the radicals A, B and D must contain no less than two halogen atoms or alkyl radicals.These derivatives have herbicidal and plant-growth regulating activity.
    Type: Grant
    Filed: July 18, 1977
    Date of Patent: January 9, 1979
    Assignee: Ciba-Geigy Corporation
    Inventors: Rolf Schurter, Hermann Rempfler
  • Patent number: 4126440
    Abstract: Hydroxamic acid derivatives of the formula I shown hereinafter are effective plant growth retarding agents. They may be used on grasses, e.g., to prevent embankments from becoming overgrown by weeds and to impart to the stalks of cereal plants greater strength by effecting a reduction in height.
    Type: Grant
    Filed: February 28, 1977
    Date of Patent: November 21, 1978
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans Moser, Rolf Schurter
  • Patent number: 4115100
    Abstract: This invention relates to the selective control of weeds and wild grasses in crops of useful plants by means of 2-pyridinol compounds of formula ##STR1## wherein A is an alkylene or alkenylene bridgeB is a group --OR.sub.1 or --SR.sub.2,R.sub.1 is alkyl, aralkyl, cycloalkyl, alkenyl, alkinyl or phenylR.sub.2 is alkyl, benzyl or phenylR.sub.3 is alkyl or phenyl andHal is chlorine or bromine,And to compositions therefor.
    Type: Grant
    Filed: February 28, 1977
    Date of Patent: September 19, 1978
    Assignee: Ciba-Geigy Corporation
    Inventors: Rolf Schurter, Hermann Rempfler, Werner Fory
  • Patent number: 4067725
    Abstract: The present invention relates to 3-pyridyl-oxy-alkancarboxylic acid amides of formula ##STR1## wherein A and B are individually hydrogen, halogen, alkyl, cyano, nitro or amino,C is hydrogen, halogen or nitron is 1 or 2Q is an aliphatic bridge, that can also be branched, unsaturated or substituted,R.sub.1 and R.sub.2 independently are hydrogen, alkyl, alkoxy, alkenyl, alkynyl, phenyl or benzyl,R.sub.1 and R.sub.2 together with the nitrogen atom to which they are bound are a 5 to 6 membered heterocycle.The invention also relates to processes for the production of these amides, to their use as regulators of plant growth and as antidotes for herbicides, as well as to compositions containing these amides as active substance.
    Type: Grant
    Filed: August 18, 1976
    Date of Patent: January 10, 1978
    Assignee: Ciba-Geigy Corporation
    Inventors: Rolf Schurter, Niels Clauson-Kaas, Hermann Rempfler