Patents Represented by Attorney, Agent or Law Firm Craig E. Mixan
  • Synergistic herbicidal compositions containing benfluralin
    Patent number: 8153556
    Abstract: An herbicidal composition containing (a) benfluralin and (b) either diflufenican, flufenacet or prosulfocarb provides synergistic control of selected weeds in cereals.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: April 10, 2012
    Assignee: Dow AgroSciences LLC
    Inventors: Dominique Larelle, Jean-Louis Cardon, Richard K. Mann
  • Agriculturally useful compositions
    Patent number: 8153557
    Abstract: A composition comprising at least one aromatic compound and at least one lactate ester compound is provided. Optionally, said composition can further comprise Cloquintocet-mexyl. Optionally, said composition can further comprise at least one emulsifier. Optionally, said composition can further comprise at least one herbicide. Processes comprising mixing such components are provided. Processes for controlling weeds or grasses or both with such compositions are provided.
    Type: Grant
    Filed: August 30, 2007
    Date of Patent: April 10, 2012
    Inventors: Jeffrey L. Jensen, Derek J. Hopkins, Mark R. Linton
  • Process for the preparation of 5-substituted-8-alkoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-amines
    Patent number: 8143395
    Abstract: 5-Substituted-8-alkoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-amines are manufactured from 2-substituted-4-amino-5-methoxypyrimidines in a process that avoids hydrazine and cyanogen halide.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: March 27, 2012
    Assignee: Dow AgroSciences LLC
    Inventors: Craig Bott, Christopher T. Hamilton, Gary Alan Roth
  • Synergistic herbicidal composition containing florasulam for weed control in turf
    Patent number: 8071506
    Abstract: An herbicidal composition containing (a) florasulam and (b) at least one preemergent annual grass herbicide selected from the group consisting of dithiopyr and pendimethalin provides synergistic control of selected weeds in turf.
    Type: Grant
    Filed: April 14, 2010
    Date of Patent: December 6, 2011
    Assignee: Dow AgroSciences LLC
    Inventors: Daniel L. Loughner, Randy L. Smith, Michael W. Melichar
  • Process for the manufacture of R-(+)-2-(4-(4-cyano-2-fluorophenoxy)phenoxy)propionic acid esters
    Patent number: 8071804
    Abstract: Cyhalofop esters are prepared by coupling 2-(4-hydroxyphenoxy)-propionic acid with 3,4-difluorobenzonitrile with base in a polar aprotic solvent (optionally including a phase-transfer catalyst), alkylating with alkyl halide, removing the polar aprotic solvent (optionally using cyhalofop ester as a flux), removing salt by aqueous extraction of molten cyhalofop ester without a solvent, and removing residual water by heating under reduced pressure.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: December 6, 2011
    Assignee: Dow AgroSciences LLC
    Inventors: Ronald B. Leng, Eric W. Otterbacher, Herbert N. Praay
  • Stable emulsifiable concentrate formulation
    Patent number: 8044059
    Abstract: The use of an N,N-dimethyl alkylamide or an N-alkanoyl morpholine provides a stable emulsifiable concentrate composition that hinders de-esterification and transesterification of mixtures of a carboxylic acid herbicide and an ester of a different carboxylic acid herbicide. The N,N-dimethyl alkylamide or N-alkanoyl morpholine additionally stabilizes emulsifiable concentrates containing a triazolopyrimidine herbicide having at least one methoxy group on the triazolopyrimidine ring.
    Type: Grant
    Filed: February 20, 2009
    Date of Patent: October 25, 2011
    Assignee: Dow AgroSciences LLC
    Inventors: Derek J. Hopkins, Robert Matthew Buttimor
  • 2-(poly-substituted aryl)-6-amino-5-halo-4-pyrimidinecarboxylic acids and their use as herbicides
    Patent number: 7888287
    Abstract: 6-Amino-5-halo-4-pyrimidinecarboxylic acids having poly-substituted aryl substituents in the 2-position, and their amine and acid derivatives, are potent herbicides demonstrating a broad spectrum of weed control.
    Type: Grant
    Filed: February 13, 2009
    Date of Patent: February 15, 2011
    Assignee: Dow AgroSciences LLC
    Inventors: Jeffrey B. Epp, Paul R. Schmitzer, James M. Ruiz, Terry W. Balko, Thomas L. Siddall, Carla N. Yerkes
  • Control of woody plants by the foliar application of triclopyr butoxyethyl ester compositions free of aromatic solvents
    Patent number: 7888288
    Abstract: Triclopyr butoxyethyl ester compositions with a dearomatized aliphatic solvent or a vegetable oil ester as a carrier provide enhanced control of woody vegetation in foliar applications.
    Type: Grant
    Filed: November 17, 2006
    Date of Patent: February 15, 2011
    Assignee: Dow AgroSciences LLC
    Inventors: Franklin Nelson Keeney, William Newton Kline, III, Patrick Littleton Burch, John Lawrence Troth
  • 2-(substituted phenyl)-6-hydroxy or alkoxy-5-substituted-4-pyrimidinecarboxylates and their use as herbicides
    Patent number: 7833940
    Abstract: 2-(Substituted phenyl)-6-hydroxy or alkoxy-5-substituted-4-pyrimidinecarboxylic acids and their derivatives are herbicides demonstrating a broad spectrum of weed control.
    Type: Grant
    Filed: April 15, 2009
    Date of Patent: November 16, 2010
    Assignee: Dow AgroSciences LLC
    Inventors: Thomas L. Siddall, Paul R. Schmitzer
  • Penoxsulam as a turfgrass, vineyard and orchard floor herbicide
    Patent number: 7820595
    Abstract: Penoxsulam, 2-(2,2-difluoroethoxy)-N-(5,8-dimethoxy[1,2,4]-triazolo[1,5-c]pyrimidin-2-yl)-6-(trifluoromethyl)benzenesulfonamide, provides synergistic herbicidal control with dicamba, the mixture of 2,4-D, triclopyr and clopyralid, or the mixture of 2,4-D and mecoprop-P.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: October 26, 2010
    Assignee: Dow AgroSciences LLC
    Inventors: Daniel L. Loughner, Anita L. Alexander, Toshiya Ogawa, James M. Breuninger
  • Safer control of broadleaf weeds in turf with granular formulations of ALS inhibiting herbicides
    Patent number: 7799343
    Abstract: The harmful effects of ALS inhibiting herbicides on turfgrass are reduced by applying the herbicides as solid granular compositions, particularly on solid granular fertilizer compositions.
    Type: Grant
    Filed: February 10, 2006
    Date of Patent: September 21, 2010
    Assignee: Dow AgroSciences LLC
    Inventor: Daniel Louis Loughner
  • 2-substituted-6-amino-5-alkyl, alkenyl or alkynyl-4-pyrimidinecarboxylic acids and 6-substituted-4-amino-3- alkyl, alkenyl or alkynyl picolinic acids and their use as herbicides
    Patent number: 7786044
    Abstract: 6-Amino-4-pyrimidinecarboxylic acids having alkyl, alkenyl or alkynyl substituents in the 5-position and 4-aminopicolinic acids having alkyl, alkenyl or alkynyl substituents in the 3-position, and their amine and acid derivatives, are potent herbicides demonstrating a broad spectrum of weed control.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: August 31, 2010
    Assignee: Dow AgroSciences LLC
    Inventors: Jeffrey B. Epp, Paul R. Schmitzer, Terry W. Balko, Carla N. Yerkes
  • Process for the preparation of 2-amino-[1,2,4]triazolo[1,5-a]pyrimidines
    Patent number: 7781582
    Abstract: Process for the preparation of unsubstituted or substituted 2-amino-[1,2,4]triazolopyrimidines which comprises combining A) 2-amino-pyrimidine or its derivatives with alkyloxycarbonyl isothiocyanate or aryloxycarbonyl isothiocyanate with B) hydroxyl ammonium salt and a base wherein the reaction is carried out in a polar aprotic organic solvent in the temperature range of from 40 to 150° C.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: August 24, 2010
    Assignee: Dow AgroSciences LLC
    Inventor: Joachim Gebhardt
  • Process for the preparation of pyridine derivatives
    Patent number: 7687632
    Abstract: Process for the preparation of substituted pyridine derivatives of formula (I) comprising reaction of a ?-?-unsaturated carbonyl compound of formula (II) R3—C(O)—C(R1)?C(R2)-G with a Wittig reagent or Horner-Wadsworth-Emmons reagent in the presence of a base and optionally subsequent cyclization.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: March 30, 2010
    Assignee: Dow AgroSciences LLC
    Inventors: Joachim Gebhardt, Norbert Götz, Hagen Jaedicke, Guido Mayer, Michael Rack
  • Purification of n-(phosphonomethyl)glycine
    Patent number: 7683207
    Abstract: The present invention is a process for the purification of glyphosate (PMG) comprising: 1) dissolving or suspending a material comprising PMG in water, in the presence of a base, to produce a composition comprising a PMG salt in an aqueous base, 2) contacting the composition with an acid, such that the PMG salt is neutralized, forming a precipitate of PMG, and 3) isolating the precipitate of PMG, with the proviso that the composition of step 1) is not concentrated or filtered using a nanofiltration membrane.
    Type: Grant
    Filed: May 20, 2005
    Date of Patent: March 23, 2010
    Assignee: Dow AgroSciences LLC
    Inventors: Jimmy Jui Tai, Herbert Nathan Praay, James William Ringer, Mark Victor Michael Emonds
  • High-strength, low-temperature stable herbicidal formulations of 2,4-dichlorophenoxy acetic acid salts
    Patent number: 7683008
    Abstract: This invention relates to a high-strength herbicidal formulation containing high concentrations of 2,4-D salt mixtures. The 2,4-D salt mixtures can include the DMA salt and the DMEA and/or the DEEA salt of 2,4-D. Selected combinations of the 2,4-D salt mixtures exhibit significantly greater low temperature stability at high concentrations.
    Type: Grant
    Filed: August 2, 2006
    Date of Patent: March 23, 2010
    Assignee: Dow AgroSciences LLC
    Inventor: Mark Richard Linton
  • Electrochemical reduction of halogenated 4-aminopicolinic acids
    Patent number: 7666293
    Abstract: The selective electrochemical reduction of halogenated 4-aminopicolinic acids is improved by activating the cathode in the presence of the starting material, excess alkali metal hydroxide and an alkali metal chloride, bromide or sulfate.
    Type: Grant
    Filed: October 4, 2007
    Date of Patent: February 23, 2010
    Assignee: Dow AgroSciences LLC
    Inventors: Chen Wang, Carey L. Scortichini, Todd S. Bridson
  • 2-(substituted phenyl)-6-amino-5-alkoxy, thioalkoxy and aminoalkyl-4-pyrimidinecarboxylates and their use as herbicides
    Patent number: 7642220
    Abstract: 2-(Substituted phenyl)-6-amino-5-alkoxy, thioalkoxy and aminoalkyl-4-pyrimidinecarboxylic acid and its derivatives are potent herbicides demonstrating broad spectrum of weed control.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: January 5, 2010
    Assignee: Dow AgroSciences LLC
    Inventors: Jeffrey B. Epp, Paul R. Schmitzer, Katherine A. Guenthenspberger, William C. Lo, Thomas L. Siddall
  • Process for the preparation of -([1,2,4]triazolopyrimidin-2-yl)aryl sulfonamides
    Patent number: 7339058
    Abstract: The N-arylsulfilimine-catalyzed coupling of aromatic sulfonyl chlorides with N-([1,2,4]triazolopyrimidin-2-yl)amines to form N-([1,2,4]triazolo-pyrimidin-2-yl)aryl sulfonamides is improved by the selection of 3-picoline or 3,5-lutidine as the base.
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: March 4, 2008
    Assignee: Dow AgroSciences LLC
    Inventor: Christopher Thomas Hamilton
  • Insecticidal 3-(2,6-disubstituted phenyl)-5-[5-arylthien-2-yl]-1,2,4-triazoles
    Patent number: 7056940
    Abstract: Triazole compounds having a 2,6-disubstituted-phenyl group in the 3-position, 5?-arylthien-2-yl group in the 5-position and an alkyl group in the 1-position are effective in controlling lepidoptera, coleoptera, mites and other sucking pests.
    Type: Grant
    Filed: September 17, 2003
    Date of Patent: June 6, 2006
    Assignee: Dow AgroSciences LLC
    Inventors: Vidyadhar Babu Hegde, Scott Jerome Bis, Maurice Chee Hoong Yap, Denise Marie Perreault, Francis Eugene Tisdell, Leonard Paul Dintenfass, James Edwin Dripps, James Michael Gifford, Katherine Anne Guenthenspberger, Laura Lee Karr, Joe Raymond Schoonover