Patents by Inventor Robert J. Ehr

Robert J. Ehr 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: 9426985
    Abstract: New compositions and methods are described for modulating the rate of conversion of ethylene bisdithiocarbamate fungicides, such as mancozeb, into ethylene bis-isothiocyanate sulfide (EBIS).
    Type: Grant
    Filed: December 27, 2013
    Date of Patent: August 30, 2016
    Assignee: Dow AgroSciences LLC
    Inventors: Min Zhao, Lei Liu, J. Todd Mathieson, Robert J. Ehr, Maria E. Rodriguez Rosas
  • Patent number: 9084418
    Abstract: The present disclosure relates to pesticide compositions consisting of meso-sized particles in combination with certain adjuvants such as built-in adjuvants which are added directly to the formulation or to an aqueous dilution of the formulation such as tank-mix adjuvants, to provide enhanced effectiveness for the control of agricultural pests. Mesoparticle compositions containing such adjuvants have been found to provide improved effectiveness compared to mesoparticle compositions not containing such adjuvants or to conventional formulations.
    Type: Grant
    Filed: August 3, 2011
    Date of Patent: July 21, 2015
    Assignee: Dow AgroSciences LLc
    Inventors: Robert J. Ehr, Thomas H. Kalantar, Lei Liu, Dale C. Schmidt, Qiang Zhang, Min Zhao
  • Patent number: 9034353
    Abstract: Disclosed herein are mesocapsules that include agriculturally active ingredients. These mesocapsules are comprised of a polyurea shell and include hydrophilic groups on their surfaces and have a volume-average diameter of about 500 nm or less and some of them have a volume-average diameter on the order of about 300 nm or less. These mesocapsules are suited for delivering active ingredients that are not very soluble in water. Methods for making these mesocapsules include interfacial polycondensation reactions carried out in the presence of surfactants and other methods in which all or most of the surfactant is replaced by adding amino acids to the aqueous phase of the interfacial reaction mixture before forming the final emulsion.
    Type: Grant
    Filed: August 5, 2010
    Date of Patent: May 19, 2015
    Assignee: Dow AgroSciences LLC
    Inventors: Robert J. Ehr, Thomas H. Kalantar, Lei Liu, Dale C. Schmidt, Mike P. Tolley, Kerrm Y. Yau, Qiang Zhang, Min Zhao
  • Publication number: 20140186451
    Abstract: New compositions and methods are described for modulating the rate of conversion of ethylene bisdithiocarbamate fungicides, such as mancozeb, into ethylene bis-isothiocyanate sulfide (EBIS).
    Type: Application
    Filed: December 27, 2013
    Publication date: July 3, 2014
    Inventors: Min Zhao, Lei Liu, J. Todd Mathieson, Robert J. Ehr, Maria E. Rodriguez Rosas
  • Patent number: 8557866
    Abstract: The present invention relates to an isomeric composition comprising isomers of dinitro-octylphenyl esters, wherein the 2,6-dinitro-4-(1-propylpentyl)phenyl ester isomer is present in an amount of less than 0.1 weight percent, based on the total weight of the isomeric composition and to synergistic fungicidal mixtures therefrom.
    Type: Grant
    Filed: April 13, 2007
    Date of Patent: October 15, 2013
    Assignee: Dow AgroSciences, LLC.
    Inventors: Richard Billington, John Davies, Bernhard Distler, Robert J. Ehr, Franco Sivieri, Elizabeth Green, John T. Mathieson
  • Publication number: 20120035054
    Abstract: The present disclosure relates to pesticide compositions consisting of meso-sized particles in combination with certain adjuvants such as built-in adjuvants which are added directly to the formulation or to an aqueous dilution of the formulation such as tank-mix adjuvants, to provide enhanced effectiveness for the control of agricultural pests. Mesoparticle compositions containing such adjuvants have been found to provide improved effectiveness compared to mesoparticle compositions not containing such adjuvants or to conventional formulations.
    Type: Application
    Filed: August 3, 2011
    Publication date: February 9, 2012
    Applicant: DOW AGROSCIENCES LLC
    Inventors: Robert J. Ehr, Thomas H. Kalantar, Lei Liu, Dale C. Schmidt, Qiang Zhang, Min Zhao
  • Publication number: 20110086761
    Abstract: The present invention relates to fungicidal compositions and their use for controlling oomycete pathogen induced disease or diseases in one or more plants.
    Type: Application
    Filed: October 13, 2010
    Publication date: April 14, 2011
    Applicant: DOW AGROSCIENCES LLC
    Inventors: Norman R. Pearson, Lei Liu, Robert J. Ehr, John M. Atkinson
  • Publication number: 20110045975
    Abstract: Various aspects disclosed herein disclose mesocapsules that include active ingredients such as agriculturally active ingredients including various fungicides, insecticides, miticides, herbicides, safeners and modifiers of plant physiology or structure. These mesocapsules are comprised of a polyurea shell and include hydrophilic groups on their surfaces. These mesocapsules have a volume-average diameter of about 500 nm or less and some of them have a volume-average diameter on the order of about 300 nm or less. These mesocapsules are especially well suited for delivering active ingredients that are not very soluble in water, many of these compounds have solubility values in the range of 1,000 ppm or less.
    Type: Application
    Filed: August 5, 2010
    Publication date: February 24, 2011
    Applicant: Dow AgroSciences LLC
    Inventors: Robert J. Ehr, Thomas H. Kalantar, Lei Liu, Dale C. Schmidt, Mike P. Tolley, Kerrm Y. Yau, Qiang Zhang, Min Zhao
  • Publication number: 20100254936
    Abstract: Disclosed herein are acylhydrazone and semicarbazones derivatives of aldehydes and ketones that may act to attract plant pathogenic zoospores and methods of using these compounds. These compounds include the compound according to Formula 1: wherein: X is selected from the group consisting of: (CH2)n, 1,3-phenylene and 1,4-phenylene; R1 is selected from the group consisting of iso-butyl, sec-butyl and tert-butyl-CH2; R2 is hydrogen or methyl; and n is equal to 0-25. Upon exposure to water, these compounds release aldehydes or ketones that may attract zoospores. These compounds can be combined with fungicides to form fungicidal formulations that are especially effective against oomycete producing fungal pathogens.
    Type: Application
    Filed: April 1, 2009
    Publication date: October 7, 2010
    Applicant: Dow AgroSciences LLC
    Inventors: Norman R. Pearson, Ronald Ross, JR., Robert J. Ehr
  • Publication number: 20090246293
    Abstract: The present invention relates to compounds and the use of such compounds for increasing the efficacy of fungicides for controlling oomycete pathogen induced disease or diseases in one or more plants.
    Type: Application
    Filed: April 1, 2009
    Publication date: October 1, 2009
    Applicant: Dow AgroSciences LLC
    Inventors: Robert J. Ehr, Norman R. Pearson, Ronald Ross, JR., Christian Schobert
  • Patent number: 6303814
    Abstract: N-(Triazoloazinyl)arylsulfonamide compounds, such as 2,6-dimethoxy-N-(8-chloro-5-methoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-yl)benzenesulfonamide, 2-methoxy-4-(trifluoromethyl)-N-(5,8-dimethoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-yl)pyridine-3-sulfonamide, and 2-methoxy-6-methoxycarbonyl-N-(5,8-dimethoxy[1,2,4]triazolo[1,5-a]pyridin-2-yl)benzenesulfonamide were prepared from appropriately substituted 2-amino[1,2,4]triazolo [1,5-c]pyrimidine and 2-amino[1,2,4]triazolo[1,5-a]pyridine compounds and appropriately substituted benzene sulfonyl chloride and pyridine-3-sulfonyl chloride compounds. The compounds were found to be useful as herbicides.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: October 16, 2001
    Assignee: Dow AgroSciences LLC
    Inventors: Timothy C. Johnson, Robert J. Ehr, Mark A. Pobanz, Richard K. Mann, Timothy P. Martin, John C. Van Heertum
  • Patent number: 6130335
    Abstract: N-(Triazoloazinyl)arylsulfonamide compounds, such as 2,6-dimethoxy-N-(8-chloro-5-methoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-yl)be nzenesulfonamide, 2-methoxy-4-(trifluoromethyl)-N-(5,8-dimethoxy[1,2,4]triazolo[1,5-c]pyrimi din-2-yl)pyridine-3-sulfonamide, and 2-methoxy-6-methoxycarbonyl-N-(5,8-dimethoxy[1,2,4]triazolo[1,5-a]pyridin- 2-yl)benzenesulfonamide were prepared from appropriately substituted 2-amino[1,2,4]triazolo[1,5-c]pyrimidine and 2-amino[1,2,4]triazolo[1,5-a]pyridine compounds and appropriately substituted benzenesulfonyl chloride and pyridine-3-sulfonyl chloride compounds. The compounds were found to be useful as herbicides.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: October 10, 2000
    Assignee: Dow AgroSciences LLC
    Inventors: Timothy C. Johnson, Robert J. Ehr, Timothy P. Martin, Mark A. Pobanz, John C. Van Heertum, Richard K. Mann
  • Patent number: 6005108
    Abstract: N-(Triazoloazinyl)arylsulfonamide compounds, such as 2,6-dimethoxy-N-(8-chloro-5-methoxy[1,2,4]-triazolo[1,5-c]pyrimidin-2-yl)b enzenesulfonamide, 2-methoxy-4-(trifluoromethyl)-N-(5,8-dimethoxy[1,2,4]-triazolo[1,5-c]pyrim idin-2-yl)pyridine-3-sulfonamide, and 2-methoxy-6-methoxycarbonyl-N-(5,8-dimethoxy[1,2,4]triazolo[1,5-a]pyridin- 2-yl)benzenesulfonamide were prepared from appropriately substituted 2-amino[1,2,4]triazolo-[1,5-c]pyrimidine and 2-amino[1,2,4]triazolo[1,5-a]-pyridine compounds and appropriately substituted benzenesulfonyl chloride and pyridine-3-sulfonyl chloride compounds. The compounds were found to be useful as herbicides.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: December 21, 1999
    Inventors: Timothy C. Johnson, Robert J. Ehr, Richard D. Johnston, William A. Kleschick, Mark A. Pobanz, Richard K. Mann, Timothy P. Martin, John C. Van Heertum
  • Patent number: 5965490
    Abstract: N-(Triazoloazinyl)arylsulfonamide compounds, such as 2,6-dimethoxy-N-(8-chloro-5-methoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-yl)be nzenesulfonamide, 2-methoxy-4-(trifluoromethyl)-N-(5,8-dimethoxy[1,2,4]triazolo[1,5-c]pyrimi din-2-yl)pyridine-3-sulfonamide, and 2-methoxy-6-methoxycarbonyl-N-(5,8-dimethoxy[1,2,4]triazolo[1,5-a]pyridin- 2-yl)benzenesulfonamide were prepared from appropriately substituted 2-amino[1,2,4]triazolo[1,5-c]pyrimidine and 2-amino[1,2,4]triazolo[1,5-a]pyridine compounds and appropriately substituted benzenesulfonyl chloride and pyridine-3-sulfonyl chloride compounds. The compounds were found to be useful as herbicides.
    Type: Grant
    Filed: July 31, 1998
    Date of Patent: October 12, 1999
    Assignee: Dow AgroSciences LLC
    Inventors: Timothy C. Johnson, Robert J. Ehr, William A. Kleschick, Mark A. Pobanz, Richard K. Mann, John C. Van Heertum
  • Patent number: 5858924
    Abstract: N-(Triazoloazinyl)arylsulfonamide compounds, such as 2,6-dimethoxy-N-(8-chloro-5-methoxy?1,2,4!-triazolo?1,5-c!pyrimidin-2-yl)b enzenesulfonamide, 2-methoxy-4-(trifluoromethyl)-N-(5,8-dimethoxy?1,2,4!-triazolo?1,5-c!pyrim idin-2-yl)pyridine-3-sulfonamide, and 2-methoxy-6-methoxycarbonyl-N-(5,8-dimethoxy?1,2,4!triazolo?1,5-a!pyridin- 2-yl)benzenesulfonamide were prepared from appropriately substituted 2-amino?1,2,4!triazolo-?1,5-c!pyrimidine and 2-amino?1,2,4!triazolo?1,5-a!-pyridine compounds and appropriately substituted benzene-sulfonyl chloride and pyridine-3-sulfonyl chloride compounds. The compounds were found to be useful as herbicides.
    Type: Grant
    Filed: September 23, 1997
    Date of Patent: January 12, 1999
    Assignee: Dow AgroSciences LLC
    Inventors: Timothy C. Johnson, Robert J. Ehr, Richard D. Johnston, William A. Kleschick, Timothy P. Martin, Mark A. Pobanz, John C. Van Heertum, Richard K. Mann
  • Patent number: 5763359
    Abstract: Substituted N-(1-ethyl-4-pyrazolyl)triazoloazinesulfonamide compounds, such as N-(1-ethyl-5-methyl-3-(trifluoromethyl)-4-pyrazoyl)-5-methoxy-7-methyl-?1, 2,4!triazolo?1,5-c!pyrimidine-2-sulfonamide and N-(1-ethyl-5-methyl-3-(trifluoromethyl)-4-pyrazolyl)-5-methoxy-7-methyl?1, 2,4!triazolo?1,5-a!pyridine-2-sulfonamide, were prepared and found to possess selective herbicidal utility.
    Type: Grant
    Filed: August 28, 1996
    Date of Patent: June 9, 1998
    Assignee: Dow AgroSciences LLC
    Inventors: Mark J. Costales, William A. Kleschick, Robert J. Ehr, Monte R. Weimer
  • Patent number: 5700940
    Abstract: Substituted N-aryl?1,2,4!triazolo?1,5-a!pyridine-2-sulfonamide compounds, such as N-(2,6-difluorophenyl)-5-methoxy-7-methyl?1,2,4!triazolo?1,5-a!pyridine-2- sulfonamide, N-(4-bromo-1-methyl-3-pyrazolyl)-8-chloro-5-methoxy?1,2,4!triazolo?1,5-a!p yridine-2-sulfonamide, and N-(2-fluoro-4-methyl-3-pyridinyl)-8-ethoxy-6-chloro?1,2,4!triazolo?1,5-a!p yridine-2-sulfonamide, were prepared by condensation of a 2-chlorosulfonyl?1,2,4!triazolo?1,5-a!pyridine compound with an aryl amine. The compounds prepared were found to possess excellent herbicidal activity on a broad spectrum of vegetation at low application rates.
    Type: Grant
    Filed: September 6, 1996
    Date of Patent: December 23, 1997
    Assignee: DowElanco
    Inventors: John C. Van Heertum, William A. Kleschick, Kim E. Arndt, Mark J. Costales, Robert J. Ehr, Kimberly Brubaker Bradley, Walter Reifschneider, Zoltan Benko, Mary Lynne Ash, John J. Jachetta
  • Patent number: 5614469
    Abstract: Substituted N-pyridinyl[1,2,4]triazolo[1,5-c]-pyrimidine-2-sulfonamide compounds, such as N-(2-fluoro-4-methyl)-7-fluoro-5-methoxy[1,2,4]triazolo[1,5-c]pyrimidine-2 -sulfonamide, were prepared bycondensation of a 2-chlorosulfonyl[1,2,4]triazolo[1,5-c]pyrimidine compound, such as 2-chlorosulfonyl-7-fluoro-5-methoxy[1,2,4]triazolo[1,5-c]pyrimidine, with a substituted 3-aminopyridine compound, such as 3-amino-2-fluoro-4-methylpyridine, and found to possess herbicidal utility.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 25, 1997
    Assignee: DowElanco
    Inventors: Kim E. Arndt, William A. Kleschick, Walter Reifschneider, Beth A. Swisher, Robert J. Ehr, John J. Jachetta, John C. Van Heertum
  • Patent number: 5571775
    Abstract: Substituted N-aryl[1,2,4]triazolo[1,5-a]pyridine-2-sulfonamide compounds, such as N-(2,6-difluorophenyl)-5-methoxy-7-methyl[1,2,4]triazolo[1,5-a]pyridine-2- sulfonamide, N-(4-bromo-1-methyl-3-pyrazoly)-8-chloro-5-methoxy[1,2,4]triazolo[1,5-a]py ridine-2-sulfonamide, and N-(2-fluoro-4-methyl-3-pyridinyl)-8-ethoxy-6-chloro[1,2,4]triazolo[1,5-a]- pyridine-2-sulfonamide, were prepared by condensation of a 2-chlorosulfonyl[1,2,4]triazolo[1,5-a]pyridine compound with an aryl amine. The compounds prepared were found to possess excellent herbicidal activity on a broad spectrum of vegetation at low application rates.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: November 5, 1996
    Assignee: DowElanco
    Inventors: John C. Van Heertum, William A. Kleschick, Kim E. Arndt, Mark J. Costales, Robert J. Ehr, Kimberly B. Bradley, Walter Reifschneider, Zolt an Benk o, John J. Jachetta
  • Patent number: 5461161
    Abstract: Substituted N-pyridinyl[1,2,4]triazolo[1,5-c]-pyrimidine-2-sulfonamide compounds, such as N-(2-fluoro-4-methyl)-7-fluoro-5-methoxy[1,2,4]triazolo[1,5-c]pyrimidine-2 -sulfonamide, were prepared by condensation of a 2-chlorosulfonyl[1,2,4]triazolo[1,5-c]pyrimidine compound, such as 2-chlorosulfonyl-7-fluoro-5-methoxy[1,2,4]triazolo[1,5-c]pyrimidine, with a substituted 3-aminopyridine compound, such as 3-amino-2-fluoro-4-methylpyridine, and found to possess herbicidal utility.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: October 24, 1995
    Assignee: DowElanco
    Inventors: Kim E. Arndt, William A. Kleschick, Walter Reifschneider, Robert J. Ehr