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).

  • Synergistic active compound combinations for controlling harmful plants
    Publication number: 20030004064
    Abstract: The invention relates to synergistic herbicide combinations for controlling harmful plants in crops of plants.
    Type: Application
    Filed: April 4, 2002
    Publication date: January 2, 2003
    Inventors: Hartmut Ahrens, Klemens Minn, Hansjorg Dietrich, Lothar Willms, Erwin Hacker, Hermann Bieringer
  • Processes for preparing aminophenylsulfonylureas, and intermediates therefor
    Patent number: 6500952
    Abstract: The invention relates to the preparation of compounds (I) in which A=H or acyl and R1, R21, R3, R, n, X, Y and Z are as defined in claim 1 by halogenation and rearrangement of compounds (II) (optionally salt) to give compounds (III) a) ammonolysis of (III) to (IV), reduction of the nitro group and reaction with carbamate (salts) (VI) of the formula Ar—OCO—N(M)—Het, where Ar=phenyl, M=H or cation and Het=heterocycle from formula (I), to give compounds (I) (A=H), or b) ammonolysis of (III) to (IV), reaction with carbamate (salt) (VI) and reduction of resulting compounds (VII) at the NO2 group to give compounds (I) (A=H), or c) reaction of (III) with cyanates and amines (VIII) of the formula HNR3—Het and reduction of the resulting compound (VII) at the NO2 group to give compounds (I) (A=H) and optional acylation if A is to be other than H.
    Type: Grant
    Filed: September 18, 2000
    Date of Patent: December 31, 2002
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Gerhard Schnabel, Jan Vermehren, Lothar Willms
  • Acylated aminophenylsulfonylureas, processes for their preparation and their use as herbicides and plant growth regulators
    Patent number: 6498253
    Abstract: Compounds of the formula (I) and salts thereof in which W1, W2, R, n, R1, R2, R4, X, Y and Z are as defined in claim 1 and R3 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: February 25, 1999
    Date of Patent: December 24, 2002
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Gerhard Schnabel, Lothar Willms, Klaus Bauer, Hermann Bieringer
  • Heterocyclyl-substituted benzoylcyclohexandiones, their preparation, and their use as herbicides
    Publication number: 20020173424
    Abstract: There are described benzoylcyclohexanediones of the formula I, their preparation, and their use as herbicides and plant growth regulators.
    Type: Application
    Filed: August 30, 2001
    Publication date: November 21, 2002
    Inventors: Andreas van Almsick, Lothar Willms, Thomas Auler, Hermann Bieringer, Felix Thurwachter
  • Substituted (hetero) aryl compounds, process for their preparation, agents containing them and their use as safeners
    Patent number: 6482947
    Abstract: Compounds of the formula I and their salts, as defined in claim 1, are suitable as safeners for protecting crop plants against the phytotoxic side-effects of herbicides.
    Type: Grant
    Filed: January 29, 1998
    Date of Patent: November 19, 2002
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Xenia Holdgrün, Lothar Willms, Klaus Bauer, Klaus Trinks, Hermann Bieringer
  • Herbicidally active benzoylcyclohexanediones
    Publication number: 20020165095
    Abstract: There are described benzoylcyclohexanediones of the formula I, their preparation, and their use as herbicides and plant growth regulators.
    Type: Application
    Filed: August 30, 2001
    Publication date: November 7, 2002
    Inventors: Thomas Seitz, Andreas van Almsick, Lothar Willms, Hermann Bieringer, Thomas Auler, Hubert Menne
  • COMBINATORIAL ACTIVE COMPOUND SYNTHESIS AND ITS INTERMEDIATES
    Publication number: 20020128383
    Abstract: The invention relates to a resin-bound synthesis process for the preparation of chemical compounds of the formula (I)
    Type: Application
    Filed: October 10, 1997
    Publication date: September 12, 2002
    Inventors: KLAUS HAAF, LOTHAR WILLMS
  • Benzoylcyclohexanediones and benzoylpyrazoles, their preparation, and their use as herbicides and plant growth regulators
    Patent number: 6448201
    Abstract: Benzoylcyclohexanediones and benzoylpyrazoles, their preparation and their use as herbicides and plant growth regulators. There are described benzoyl compounds of the formula (I), their preparation and their use as herbicides and plant growth regulators. In this formula (I), R1, R2, R3 and R4 are various radicals, X is an alkylene chain which may contain a hetero atom and Het is a heterocycle or heteroaromatic ring.
    Type: Grant
    Filed: November 2, 2000
    Date of Patent: September 10, 2002
    Assignee: Aventis CropScience GmbH
    Inventors: Thomas Seitz, Lothar Willms, Thomas Auler, Hermann Bieringer, Felix Thürwächter
  • Substituted 2-amino-1,3,5-triazines, their preparation, and their use as herbicides and plant growth regulators
    Publication number: 20020115567
    Abstract: Substituted 2-amino-1,3,5-triazines, their preparation and their use as herbicides and plant growth regulators
    Type: Application
    Filed: July 17, 2001
    Publication date: August 22, 2002
    Inventors: Wolfgang Giencke, Lothar Willms, Thomas Auler, Hermann Bieringer, Hubert Menne
  • HERBICIDAL COMPOSITIONS FOR TOLERANT OR RESISTANT MAIZE CROPS
    Publication number: 20020094934
    Abstract: Herbicide combinations (A)+(B), if appropriate in the presence of safeners, with an effective content of
    Type: Application
    Filed: August 10, 1999
    Publication date: July 18, 2002
    Inventors: ERWIN HACKER, HERMANN BIERINGER, LOTHAR WILLMS
  • Benzoylpyrazoles and their use as herbicides
    Patent number: 6420317
    Abstract: Benzoylpyrazoles of the formula (I) and their use as herbicides are described. In the formula (I), R1, R2, R3, R4 and R5 are various radicals and n is from 0 to 2.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: July 16, 2002
    Assignee: Aventis CropScience GmbH
    Inventors: Monika Schmitt, Andreas van Almsick, Rainer Preuss, Lothar Willms, Thomas Auler, Hermann Bieringer, Felix Thürwächter
  • 2,4-diamino-1,3,5-triazines, their preparation, and their use as herbicides and plant growth regulators
    Publication number: 20020091260
    Abstract: The invention is in the technical field of the crop protection agents, such as herbicides and plant growth regulators, in particular of the herbicides for the selective control of harmful plants in crops of useful plants.
    Type: Application
    Filed: December 18, 2001
    Publication date: July 11, 2002
    Inventors: Wolfgang Giencke, Klemens Minn, Lothar Willms, Thomas Auler, Hermann Bieringer, Christopher Rosinger
  • Phenylsulfonylureas, processes for their preparation, and their use as herbicides and plant growth regulators
    Patent number: 6410483
    Abstract: Compounds of the formula (I) and salts thereof in which R1-R9, W and A are as defined in formula (I) of claim 1 are suitable as herbicides and plant growth regulators. They can be prepared by processes according to claim 5 via intermediates according to claim 9, some of which are novel.
    Type: Grant
    Filed: January 21, 1998
    Date of Patent: June 25, 2002
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Klaus Lorenz, Lothar Willms, Klaus Bauer, Hermann Bieringer, Christopher Rosinger
  • (Het) arylsulfonylureas having an amino function, their presentation and their use as herbicides and plant growth regulators
    Patent number: 6410482
    Abstract: (Het)Arylsulfonylureas having an imino function, their preparation, and their use as herbicides and plant growth regulators Compounds of the formula (I) and salts thereof in which A is a (hetero)aromatic or heterocyclic bridge linked to the group SO2 by a direct bond, or via O, S, NH, CH2 or via alkylated NH or alkylated methylene, B is a group having an imino-containing fragment N═C—N, N═C—S, N═C—O or N═C—C which is linked to A by one of the nitrogen atoms of the fragment, R═H or an aliphatic radical, W═O or S and X, Y and Z are as defined in claim 1 are suitable as herbicides and plant growth regulators. The preparation is carried out for example similarly to known processes via novel intermediates of the formula (XII) (cf.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: June 25, 2002
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Gerhard Schnabel, Lothar Willms, Klaus Bauer, Hermann Bieringer, Christopher Rosinger
  • Benzoylpyrazoles and their use as herbicides
    Publication number: 20020065200
    Abstract: Benzoylpyrazoles of the formula (I) and their use as herbicides are described.
    Type: Application
    Filed: March 29, 2001
    Publication date: May 30, 2002
    Inventors: Monika Schmitt, Andreas van Almsick, Rainer Preub, Lothar Willms, Thomas Auler, Hermann Bieringer, Felix Thurwachter
  • Substituted sulfonylaminomethylbenzoic acid (derivatives) and their preparation
    Publication number: 20020062029
    Abstract: The present invention relates to a compound of the formula (I) 1
    Type: Application
    Filed: July 20, 2001
    Publication date: May 23, 2002
    Inventors: Klaus Lorenz, Hans-Joachim Ressel, Lothar Willms
  • Benzoylcyclohexanediones, process for their preparation and their use as herbicides and plant growth regulators
    Patent number: 6376429
    Abstract: Benzoylcyclohexanediones of the formula (I), process for their preparation and their use as herbicides and plant growth regulators are described. In this formula (I), R11, R2, R3, R4, R5, R6 and R7 are various radicals, L is an alkylene chain, and Y and Z are a monoatomic bridge element.
    Type: Grant
    Filed: October 7, 1999
    Date of Patent: April 23, 2002
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Andreas Van Almsick, Lothar Willms, Thomas Auler, Hermann Bieringer, Christopher Rosinger
  • Method for producing glufosinates and intermediate products for the same
    Patent number: 6359162
    Abstract: Glufosinate and the 2-methyl analog thereof can be prepared in a multi-step synthesis from methylphosphorus compounds (II) with unsaturated keto compounds (III) via adducts (IV), subsequent reaction under the conditions of a Strecker synthesis and finally hydrolysis of the aminonitrile (V): Step 1: Step 2: Step 3: Hydrolysis of (V) to give glufosinate Depending on process conditions and substrates, various compounds can be identified as adducts (IV).
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: March 19, 2002
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventor: Lothar Willms
  • Disubstituted methylidene hydrazinophenyl sulfonylureas, process for their production and their use as herbicides and plant growth regulators
    Patent number: 6331506
    Abstract: Disubstituted methylidenehydrazinophenylsulfonylureas, processes for their preparation and their use as herbicides and plant growth regulators Compounds of the formula (I) and salts thereof in which R1 to R6, W, X, Y, Z are as defined in claim 1 and the group R2R3C is a carbon atom which is subsituted by at least one electron-withdrawing radical R2 or R3 are suitable as herbicides and plant growth regulators. They can be prepared in accordance with known processes via intermediates, some of which are novel.
    Type: Grant
    Filed: September 16, 1998
    Date of Patent: December 18, 2001
    Assignee: Hoechst Schering AgrEvo GmbH
    Inventors: Heinz Kehne, Lothar Willms, Klaus Bauer, Hermann Bieringer, Christopher Rosinger
  • Herbicidal compositions for tolerant or resistant rice crops
    Publication number: 20010031704
    Abstract: Herbicide combinations (A)+(B), if appropriate in the presence of safeners, with an effective content of
    Type: Application
    Filed: March 21, 2001
    Publication date: October 18, 2001
    Inventors: Erwin Hacker, Hermann Bieringer, Lothar Willms