Patents by Inventor Lothar Willms

Lothar Willms 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: 6297196
    Abstract: Benzoyl derivatives of the formula (I), process for their preparation and their use as herbicides and plant growth regulators are described. In this formula (I), R1, R2, R3, R4 and R5 are various organic radicals, Q is isothiazole, isoxazole, cyclohexanedione or a &bgr;-ketonitrile radical and A, B, E and X are divalent units containing one or more atoms.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: October 2, 2001
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Andreas Van Almsick, Lothar Willms, Thomas Auler, Hermann Bieringer, Christopher Rosinger
  • Publication number: 20010011063
    Abstract: Compounds of the formula (I) and salts thereof in optically active form, 1
    Type: Application
    Filed: December 13, 2000
    Publication date: August 2, 2001
    Inventors: Wolfgang Giencke, Lothar Willms, Thomas Auler, Hermann Bieringer, Christopher Rosinger
  • Patent number: 6265348
    Abstract: Compounds of the formula (I) and salts thereof in which R1 to R6, W, X, Y and Z are defined as in claim 1, have herbicidal or plant growth-regulatory properties. They can be prepared by processes analogous to known processes (cf. claim 5), in some cases via novel intermediate products (cf.
    Type: Grant
    Filed: February 17, 1999
    Date of Patent: July 24, 2001
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Heinz Kehne, Lothar Willms, Klaus Bauer, Hermann Bieringer, Christopher Rosinger
  • Patent number: 6251827
    Abstract: Acylsulfamoylbenzamides of the formula I and crop protection compositions comprising them are described. In this formula I, R1, R2, R3, R4 and R5 are various organic radicals and X is CH or N.
    Type: Grant
    Filed: September 25, 1998
    Date of Patent: June 26, 2001
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Frank Ziemer, Lothar Willms, Thomas Auler, Hermann Bieringer, Christopher Rosinger
  • Patent number: 6239071
    Abstract: Compounds of the formula (I) and their salts in which R1 is optionally substituted (C1-C6)alkyl or optionally substituted phenyl, A is an optionally substituted hydrocarbon diradical and R2, R3, R4, R5, X and n are as defined in claim 1, are suitable as herbicides and plant growth regulators. The compounds (I) can be prepared according to processes as claimed in claim 6 by means of intermediates which are novel in some cases, e.g. of the formula (IV) as claimed in claim 10.
    Type: Grant
    Filed: August 22, 1996
    Date of Patent: May 29, 2001
    Assignee: Hoecht Schering AgrEvo GmbH
    Inventors: Wolfgang Giencke, Klemens Minn, Lothar Willms, Hermann Bieringer, Klaus Bauer, Christopher Rosinger
  • Patent number: 6239306
    Abstract: Compounds of the formula (I) and their salts as defined in claim 1, in which R1 is CO—Q—R8, where R8=H or R R2 and R3 are H or (C1-C4)alkyl, R4 is H, R, RO, OH, RCO, RSO2, PhSO2 R5 is RSO2, PhSO2, PhCO, RNHSO2, R2NSO2, RCO, CHO, COCOR′, CW—T—R9, CW—NR10R11, CW—N(R12)2 or R4 and R5 together are the chain (CH2)mB or —B1—(CH2)m1B— where B=SO2, m=3, 4; m1=2, 3; T and W=O, S; Q=O, S, NR13 where R13=H, R; R6=H, R, RO, RCO, ROCO, Hal, NO2, CN; R7=H, CH3; R9=R; R10, R11=H, R; N(R12)2=heterocycle A=pyrimidinyl and triazinyl radical or an analog thereof, where R=(substituted) aliphatic hydrocarbon radical, are suitable as selective herbicides. They are prepared by analogous processes via sulfonamides, some of which are new, of the formula (II) (see claim 4).
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: May 29, 2001
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Klaus Lorenz, Lothar Willms, Klaus Bauer, Hermann Bieringer
  • Patent number: 6235680
    Abstract: Novel N-acylsulfonamides, novel mixtures of herbicides and antidotes, and their use Safeners against phytotoxic side effects of pesticides in crop plants are compounds of the formula (I) and salts thereof where R1 is hydrogen, a hydrocarbon radical, a hydrocarbonoxy radical, a hydrocarbonthio radical or a heterocyclyl radical, each of the last-mentioned 4 radicals being unsubstituted or substituted by one or more identical or different radicals selected from the group consisting of halogen, cyano, nitro, amino, hydroxyl, carboxyl, formyl, carboxamide, sulfonamide and radicals of the formula —Za—Ra R2 is hydrogen or (C1-C4)-alkyl or R1 and R2 together with the group of the formula —CO—N— are the radical of a 3- to 8-membered saturated or unsaturated ring and R3 to R5, n and m are as defined in claim 1. The compounds can be prepared by the process of claim 8.
    Type: Grant
    Filed: May 27, 1997
    Date of Patent: May 22, 2001
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Frank Ziemer, Klaus Haaf, Lothar Willms, Klaus Bauer, Hermann Bieringer, Christopher Rosinger
  • Patent number: 6228808
    Abstract: Compounds of the formula (I) or salts thereof in which R1, R3=H, (subst.) hydrocarbon radical (HC) or (subst.) heterocyclyl which, including substituents, have 1-30 carbon atoms, R2=R0—Q0—, in which R0=H, (subst.) HC or (subst.) heterocyclyl radical, in each case having 1-30 carbon atoms including substituents, and Q0=a direct bond or —O—, —SO2-, —NH—, —N[(C1-C6)alkyl]-, —CO—, —CO—NH— or —O—CO—NH—; R4=H, halogen, NO2, CN, (C1-C4)alkyl, (C1-C4)alkoxy, [(C1-C4)alkyl]carbonyl or [(C1-C4)alkoxy]carbonyl, where each of the last four radicals may be halogenated; R5=H or (C1-C4)alkyl; Q=O or NR*; R*=H.
    Type: Grant
    Filed: October 30, 1998
    Date of Patent: May 8, 2001
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Heinz Kehne, Lothar Willms, Christian Waldraff, Hansjörg Dietrich, Hermann Bieringer, Christopher Rosinger, Thomas Auler
  • Patent number: 6211216
    Abstract: Isoxazolyl- and isoxazolinyl-substituted benzoylcyclohexanediones, process for their preparation and their use as herbicides and plant growth regulators. Benzoylcyclohexanediones of the formula (I), process for their preparation and their use as herbicides and plant growth regulators are described. In formula (I) R1, R2, R3, R4, R5, R6, R7, Ra, Rb, and Rc are various radicals and Y and Z are a monoatomic bridge element.
    Type: Grant
    Filed: July 25, 2000
    Date of Patent: April 3, 2001
    Assignee: Aventis CorpScience GmbH
    Inventors: Lothar Willms, Andreas Van Almsick, Hermann Bieringer, Thomas Auler, Felix Thürwächter
  • Patent number: 6147248
    Abstract: The invention relates to compounds of the formula (I) ##STR1## in which R=(subst.) alkyl or (subst.) cycloalkyl, which are suitable as intermediates for preparing herbicidal sulfonylureas. According to the invention, the compounds (I) are prepared by(a) diazotizing a compound of the formula (II) ##STR2## in the presence of an acid H.sup.+ X.sup.-, where X.sup.- is an equivalent of an anion, to give the novel compounds (diazonium salts) of the formula (III) ##STR3## (b) reacting the compound of the formula (III) in the presence of iodide ions to give the compound (IV) and ##STR4## (c) reacting the compound of the formula (IV) with an isocyanate of the formula (V)R--N.dbd.C.dbd.O (V)in which R is as defined in formula (I), to give the compound of the formula (I).
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: November 14, 2000
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Lothar Willms, Harald Knorr
  • Patent number: 6124240
    Abstract: Phytotoxic side effects of the herbicide of the formula (A1) (flupyrsulfuron) or herbicidal salts thereof ##STR1## on crops, preferably cereals and maize, can be prevented by combining the herbicides with safeners (B) from the groupa) compounds of the formulae (B1) and (B2), ##STR2## in which W is a divalent heterocyclic radical from the group of the partially unsaturated or heteroaromatic five-membered heterocycles having 1 to 3 hetero ring atoms of the type N and O, at least one nitrogen atom and at the most one oxygen atom being present in the ring, andX, n, Z, R*, and W are as defined in claim 1, and/orb) compounds of the group of the hormonal growth regulators (auxins).
    Type: Grant
    Filed: September 17, 1997
    Date of Patent: September 26, 2000
    Assignee: Hoechst AgrEvo GmbH
    Inventors: Hermann Bieringer, Erwin Hacker, Heinz Kehne, Lothar Willms
  • Patent number: 6071860
    Abstract: Compounds of the formula (I) and salts thereof ##STR1## where R.sup.1 to R.sup.5, A, Z, X, X', n and m are as defined in claim 1 are suitable as herbicides and plant growth regulators.
    Type: Grant
    Filed: February 6, 1997
    Date of Patent: June 6, 2000
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Wolfgang Giencke, Lothar Willms, Klaus Bauer, Hermann Bieringer, Christopher Rosinger
  • Patent number: 6069114
    Abstract: Compounds of the formula (I) and their salts ##STR1## in which R.sup.1 to R.sup.6, Y.sup.1, to Y.sup.2, Y.sup.3, m and n are as defined in claim 1 are suitable as herbicides and plant growth regulators. They can be prepared analogously to known processes using intermediates of the formula (V) (cf. claim 6).
    Type: Grant
    Filed: February 25, 1997
    Date of Patent: May 30, 2000
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Klaus Lorenz, Klemens Minn, Lothar Willms, Klaus Bauer, Hermann Bieringer, Christopher Rosinger
  • Patent number: 6017852
    Abstract: The invention relates to a method of controlling harmful plants in rice crops, which comprises applying one or more compounds of the formula (I) or salts thereof whereR.sup.1 is an acyl radical from the group CO--R.sup.2, CS--R.sup.2, CO--OR.sup.3, CS--OR.sup.3, CO--SR.sup.4, CS--SR.sup.4, CO--NR.sup.5 R.sup.6 and CS--NR.sup.5 R.sup.6, and R.sup.2, R.sup.3, R.sup.4, R.sup.5 and R.sup.6 and also X, Y and Z are as defined in the formula (I) of claim 1,to the area under cultivation, which contains the harmful plants and rice plants or their seeds, in an effective amount of from 0.0001 to 0.5 kg of a.i./ha.The compounds (I) are known per se. The invention also provides novel salts of the compounds (I).
    Type: Grant
    Filed: May 21, 1998
    Date of Patent: January 25, 2000
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Gerhard Schnabel, Lothar Willms, Klaus Bauer
  • Patent number: 5972839
    Abstract: The invention relates to novel .alpha.-fluoroacrylic acid derivatives, to active compound/antidote combinations which comprise .alpha.-fluoroacrylic acid derivatives and are outstandingly suitable for use in crops of useful plants, to their use and to methods for protecting crop plants.
    Type: Grant
    Filed: December 17, 1997
    Date of Patent: October 26, 1999
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Frank Ziemer, Lothar Willms, Klaus Bauer, Hermann Bieringer, Christopher Rosinger, Jacques Demassey
  • Patent number: 5925597
    Abstract: Compounds of the formula (I) and their salts as defined in claim 1, ##STR1## in which R.sup.1 is CO--Q--R.sup.8, where R.sup.8 =H or RR.sup.2 and R.sup.3 are H or (C.sub.1 -C.sub.4)alkyl,R.sup.4 is H, R, RO, OH, RCO, RSO.sub.2, PhSO.sub.2R.sup.5 is RSO.sub.2, PhSO.sub.2, PhCO, RNHSO.sub.2, R.sub.2 NSO.sub.2, RCO, CHO, COCOR', CW--T--R.sup.9, CW--NR.sup.10 R.sup.11, CW--N(R.sup.12).sub.2 orR.sup.4 and R.sup.5 together are the chain (CH.sub.2).sub.m B or --B.sup.1 --(CH.sub.2).sub.m1 B-- where B=SO.sub.2, CO; m=3, 4; m.sup.1 =2, 3;T and W=O, S; Q=O, S, NR.sup.13 where R.sup.13 =H, R;R.sup.6 =H, R, RO, RCO, ROCO, Hal, NO.sub.2, CN;R.sup.7 =H, CH.sub.3 ; R.sup.9 =R; R.sup.10, R.sup.11 =H, R; N(R.sup.12).sub.2 =heterocycleA=pyrimidinyl and triazinyl radical or an analog thereof,where R=(substituted) aliphatic hydrocarbon radical, are suitable as selective herbicides. They are prepared by analogous processes via sulfonamides, some of which are new, of the formula (II).
    Type: Grant
    Filed: March 31, 1997
    Date of Patent: July 20, 1999
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Klaus Lorenz, Lothar Willms, Klaus Bauer, Hermann Bieringer
  • Patent number: 5925596
    Abstract: Substituted aminomethylphenylsulfonylureas, their preparation, and their use as herbicides and plant growth regulatorsCompounds of the formula (I) and salts thereof ##STR1## where R.sup.1 to R.sup.7 and A are as defined in claim 1 and, inter alia, F.sup.5 is an acyl radical or NR.sup.4 R.sup.5 together are a heterocyclic radical, are useful as herbicides and plant growth regulators. They can be prepared by the methods of known processes, using novel intermediates of the formula (II), (IV), (VI) or (VII) (cf. claim 5).
    Type: Grant
    Filed: April 24, 1997
    Date of Patent: July 20, 1999
    Assignee: Hoechst-Schering AgrEvo GmbH
    Inventors: Klaus Lorenz, Lothar Willms, Klaus Bauer, Hermann Bieringer, Christopher Rosinger
  • Patent number: 5922646
    Abstract: Acylated aminophenylsulfonylureas, processes for their preparation and their use as herbicides and plant growth regulators. Compounds of the formula (I) and salts thereof ##STR1## in which W.sup.1, W.sup.2, R, n, R.sup.1, R.sup.2, R.sup.4, X, Y and Z are as defined in claim 1 and R.sup.3 is an acyl radical, are suitable as herbicides and plant growth regulators. The herbicides can be prepared by the process variants from claim 5, the novel intermediate products (II), (IV), (VI) and (VIII)* of claims 9 and 10 being employed.
    Type: Grant
    Filed: August 4, 1997
    Date of Patent: July 13, 1999
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Gerhard Schnabel, Lothar Willms, Klaus Bauer, Hermann Bieringer
  • Patent number: 5922648
    Abstract: Compounds of the formula (I) and salts thereof ##STR1## in which R.sup.1 to R.sup.9, X, Y n and m are as defined in the claim 1 are suitable as herbicides and plant growth regulators.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: July 13, 1999
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Klaus Lorenz, Klemens Minn, Lothar Willms, Klaus Bauer, Hermann Bieringer, Christopher Rosinger
  • Patent number: 5922645
    Abstract: Compounds of the formula (I) and salts thereof ##STR1## in which R.sup.1 to R.sup.6, W, X, Y and Z are defined as in claim 1, have herbicidal or plant growth-regulatory properties.They can be prepared by processes analogous to known processes (cf. claim 5), in some cases via novel intermediate products (cf.
    Type: Grant
    Filed: November 22, 1995
    Date of Patent: July 13, 1999
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Heinz Kehne, Lothar Willms, Klaus Bauer, Hermann Bieringer, Christopher Rosinger