Patents by Inventor Ben C. Gerwick, III

Ben C. Gerwick, III 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).

  • Herbicidal alkoxy-1,2,4-triazolo[1,5-c]pyrimidine-2-sulfonamides
    Patent number: 5163995
    Abstract: 5-Alkoxy-1,2,4-triazolo[1,5-c]pyrimidine-2-sulfonamides are prepared from 5-alkoxy-1,2,4-triazolo[1,5-c]pyrimidine-2-sulfonyl halides by condensation with ortho-substituted N-trialkylsilylanilines and by other methods. N-(2,6-dichloro-3-methylphenyl)-8-fluoro-5-methoxy-1,2,4-triazolo[1,5-c]py rimidine-2-sulfonamide is typical. The compounds are general and selective pre- and postemergence herbicides.
    Type: Grant
    Filed: August 13, 1991
    Date of Patent: November 17, 1992
    Assignee: DowElanco
    Inventors: John C. Van Heertum, Ben C. Gerwick, III, William A. Kleschick, Timothy C. Johnson
  • Herbicidal alkoxy-1,2,4-triazolo(1,5-c)primidine-2-sulfonamides
    Patent number: 5010195
    Abstract: Alkoxy substituted 1,2,4-triazolo[1,5-c]-pyrimidine-2-sulfonamides are prepared from alkoxy substituted 1,2,4-triazolo[1,5-c]pyrimidine-2-sulfonyl halides by condensation with substituted N-trialkylsilylanilines and by other methods. N-(2,6-dichloro-3-methylphenyl)-5,7-dimethoxy-1,2,4-triazolo[1,5-c]pyrimid ine-2-sulfonamide is typical. The compounds are general and selective pre- and postemergence herbicides.
    Type: Grant
    Filed: May 3, 1989
    Date of Patent: April 23, 1991
    Assignee: The Dow Chemical Company
    Inventors: John C. Van Heertum, Ben C. Gerwick, III, William A. Kleschick
  • 2,6-disubstituted anilines
    Patent number: 4983772
    Abstract: Novel substituted triazolo [1,5-a]pyrimidine-2-sulfonamides, e.g., 5,7-dimethyl-N-(2,6-dichlorophenyl)-1,2,4-triazolo[1,5-a]pyrimidine-2-sulf onamide and their agriculturally acceptable salts are prepared. These compounds and compositions containing them are useful for the control of unwanted vegetation. Novel substituted triazolo[1,5-a]pyrimidine-2-sulfonyl chlorides and substituted anilines and their use as intermediates are also described.
    Type: Grant
    Filed: September 13, 1989
    Date of Patent: January 8, 1991
    Assignee: The Dow Chemical Company
    Inventors: William A. Kleschick, Mark J. Costales, Robert J. Ehr, Ben C. Gerwick, III, deceased Meikle, by Diane L. Meikle, executrix, William T. Monte, Norman R. Pearson
  • Substituted 1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamides, compositions containing them, and their utility as herbicides
    Patent number: 4954163
    Abstract: Novel substituted triazolo[1,5-a]pyrimidine-2-sulfonamides, e.g., 5,7-dimethyl-N-(2,6-dichlorophenyl)-1,2,4-triazolo[1,5-a]pyrimidine-2-sulf onamide and their agriculturally acceptable salt are prepared. These compounds and compositions containing them are useful for the control of unwanted vegetation. Novel substituted triazolo[1,5-a]pyrimidine-2-sulfonyl chlorides and substituted anilines and their use as intermediates are also described.
    Type: Grant
    Filed: September 13, 1989
    Date of Patent: September 4, 1990
    Assignee: The Dow Chemical Company
    Inventors: William A. Kleschik, Robert J. Ehr, Mark J. Costales, Ben C. Gerwick, III, Richard W. Meikle, deceased, William T. Monte, Norman R. Pearson
  • Substituted 1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonyl chlorides
    Patent number: 4886883
    Abstract: Novel substituted triazolo[1,5-a]pyrimidine-2-sulfonamides, e.g., 5,7-dimethyl-N-(2,6-dichlorophenyl)-1,2,4-triazolo[1,5-a]pyrimidine-2-sulf onamide and their agriculturally acceptable salt are prepared. These compounds and compositions containing them are useful for the control of unwanted vegetation. Novel substituted triazolo[1,5-a]pyrimidine-2-sulfonyl chlorides and substituted anilines and their use as intermediates are also described.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: December 12, 1989
    Assignee: The Dow Chemical Company
    Inventors: William A. Kleschick, Robert J. Ehr, Mark J. Costales, Ben C. Gerwick, III, Richard W. Meikle, deceased, William T. Monte, Norman R. Pearson
  • Substituted 1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamides, compositions containing them, and their utility as herbicides
    Patent number: 4818273
    Abstract: Novel substituted triazolo[1,5-a]pyrimidine-2-sulfonamides, e.g., 5,7-dimethyl-N-(2,6-dichlorophenyl)-1,2,4-triazolo[1,5-a]pyrimidine-2-sulf onamide and their agriculturally acceptable salts are prepared. These compounds and compositions containing them are useful for the control of unwanted vegetation. Novel substituted triazolo[1,5-a]pyrimidine-2-sulfonyl chlorides and substituted anilines and their use as intermediates are also described.
    Type: Grant
    Filed: December 10, 1986
    Date of Patent: April 4, 1989
    Assignee: The Dow Chemical Company
    Inventors: William A. Kleschick, Robert J. Ehr, Mark J. Costales, Ben C. Gerwick, III, Richard W. Meikle, deceased, William T. Monte, Pearson, Norman R.
  • Novel substituted 1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamides and compositions and method for inhibiting pollen formation in corn
    Patent number: 4755212
    Abstract: Novel compounds, e.g., 5,7-dimethyl-N-(2,6-dichlorolphenyl)-1,2,4-triazolo[1,5-a]pyrimidine-2-sul fonamide and their compositions and use in the control of weeds and in the suppression of nitrification of ammonium nitrogen in soil. Other novel compounds and their compositions and use in the inhibition of bolting in sugar beets. Other novel compounds and their compositions and use as plant gametocides.
    Type: Grant
    Filed: November 21, 1986
    Date of Patent: July 5, 1988
    Assignee: The Dow Chemical Company
    Inventors: William A. Kleschick, Ben C. Gerwick, III, Robert J. Ehr, William T. Monte, Norman R. Pearson, Richard W. Meikle, Mark J. Costales
  • Substituted 1,2,4-triazolo[1,5-a]-pyrimidine-2-sulfonamides and compositions and methods of controlling undesired vegetation and inhibiting sugar beet bolting
    Patent number: 4741764
    Abstract: Novel compounds, e.g., 5,7-dimethyl-N-(2,6-dichlorolphenyl)-1,2,4-triazolo[1,5-a]pyrimidine-2-sul fonamide and their compositions and use in the control of weeds and in the suppression of nitrificatin of ammonium nitrogen in soil. Other novel compounds and their compositions and use in the inhibition of bolting in sugar beets. Other novel compounds and their compositions and use as plant gametocides.
    Type: Grant
    Filed: November 21, 1986
    Date of Patent: May 3, 1988
    Assignee: The Dow Chemical Company
    Inventors: William A. Kleschick, Ben C. Gerwick, III, Robert J. Ehr, William T. Monte, Norman R. Pearson, Richard W. Meikle, Mark J. Costales
  • Substituted 1,2,4-triazolo[1,5-a]-pyrimidine-2-sulfonamides and compositions and methods of controlling undesired vegetation and suppressing the nitrification of ammonium nitrogen in soil
    Patent number: 4740233
    Abstract: Novel compounds, e.g., 5,7-dimethyl-N-(2,6-dichlorolphenyl)-1,2,4-triazolo[1,5-a]pyrimidine-2-sul fonamide and their compositions and use in the control of weeds and in the suppression of nitrification of ammonium nitrogen in soil. Other novel compounds and their compositions and use in the inhibition of bolting in sugar beets. Other novel compounds and their compositions and use as plant gametocides.
    Type: Grant
    Filed: November 17, 1986
    Date of Patent: April 26, 1988
    Assignee: The Dow Chemical Company
    Inventors: William A. Kleschick, Robert J. Ehr, Ben C. Gerwick, III, William T. Monte, Norman R. Pearson, Mark J. Costales, Richard W. Meikle
  • Inhibiting the antagonism between pyridyloxy-phenoxy alkanoate herbicides and benzothiadiazinone herbicides in post-emergent applications
    Patent number: 4447257
    Abstract: The addition of crop oil to herbicidal compositions containing pyridyloxy-phenoxy alkanoate herbicides and benzothiadiazinone herbicides inhibits the antagonism between the pyridyloxy-phenoxy alkanoate herbicides and the benzothiadiazinone herbicides.
    Type: Grant
    Filed: November 16, 1981
    Date of Patent: May 8, 1984
    Assignee: The Dow Chemical Company
    Inventor: Ben C. Gerwick, III