Patents by Inventor John J. Jachetta

John J. Jachetta 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).

  • N-aryl?1,2,4!triazolo?1,5-a!pyridine-2-sulfonamide herbicides
    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
  • N-pyridinyl[1,2,4]triazolo[1,5-c]pyrimidine-2-sulfonamide herbicides
    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
  • N-aryl[1,2,4]triazolo[1,5-a]pyrazine-2-sulfonamide herbicides
    Patent number: 5602075
    Abstract: Substituted N-aryl[1,2,4]triazolo[1,5-a]-pyrazine-2-sulfonamide compounds, such as 5-bromo-N-(2,6-dichlorophenyl)-8-methoxy[1,2,4]triazolo[1,5-a]-pyrazine-2- sulfonamide, were prepared by condensation of a substituted 2-chlorosulfonyl[1,2,4]triazolo[1,5-a]pyrazine compound, such as 5-bromo-2-chlorosulfonyl-8-methoxy[1,2,4]triazolo[1,5-a]pyrazine with a substituted arylamine compound, such as 2,6-dichloroaniline, and found to possess herbicidal utility.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: February 11, 1997
    Assignee: DowElanco
    Inventors: Zoltan Benko, John J. Jachetta, Mark J. Costales, Kim E. Arndt
  • N-aryl[1,2,4]triazolo[1,5-a]pyridine-2-sulfonamide herbicides
    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
  • Herbicidal cycloalkenyl acetamides
    Patent number: 4608082
    Abstract: This invention relates to novel herbicidal cycloalkenyl acetamides. These acetamides are useful in the inhibition of undesired vegetation and exhibit excellent selectivity in crops of cultivated plants, particularly in crops of flooded rice.
    Type: Grant
    Filed: February 19, 1985
    Date of Patent: August 26, 1986
    Assignee: Union Carbide Corporation
    Inventors: Todd A. Craig, John J. Jachetta