Patents by Inventor Robert M. Watkins

Robert M. Watkins 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).

  • Publication number: 20040142819
    Abstract: The present invention describes synergistic herbicidal compositions, including their methods of use. The herbicidal compositions include an imidazolinone herbicide or an agronomically acceptable salt thereof, and a graminicide or an agronomically acceptable salt thereof; wherein the respective herbicidal constituents are present in amounts to exhibit synergistic effects. Such compositions are useful in methods of herbicidally treating weeds wherein the method includes contacting the undesired plant or area intended for crop plants with a synergistically effective amount of such an herbicidal combination or composition of an imidazolinone herbicide and graminicide.
    Type: Application
    Filed: November 24, 2003
    Publication date: July 22, 2004
    Inventor: Robert M. Watkins
  • Patent number: 6277787
    Abstract: The present invention provides a method for the synergistic control of undesirable plants such as Ipomoea, Cyperus, Sida and Euphorbia which comprises applying to the plants or their locus a synergistically effective amount of a combination of glyphosate and an imidazolinone compound. Further provided are synergistic herbicidal compositions comprising glyphosate and an imidazolinone compound.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: August 21, 2001
    Assignee: American Cyanamid Co.
    Inventors: Timothy Malefyt, Robert M. Watkins, Frederick P. Salzman
  • Patent number: 6214768
    Abstract: The present invention provides a method for the synergistic control of undesirable plants such as Ipomoea, Cyperus, Sida and Euphorbia which comprises applying to the plants or their locus a synergistically effective amount of a combination of glyphosate and an imidazolinone compound. Further provided are synergistic herbicidal compositions comprising glyphosate and an imidazolinone compound, and specifically concentrated aqueous herbicidal compositions of imidazolinyl acid salts and glyphosate salts.
    Type: Grant
    Filed: September 14, 1999
    Date of Patent: April 10, 2001
    Assignee: American Cyanamid Co.
    Inventors: Kelly Neoob DeCarvalao Castro, Timothy Malefyt, Robert M. Watkins, Wilson Mendonca, Frederick P. Salzman
  • Patent number: 5478795
    Abstract: Synergistic herbicidal imidazolinone compositions, and methods for their use in selective postemergence control of undesirable plant species in the presence of crops; particularly for the selective control of undesirable plant species of the genera: Ipomoea, Sorghum and Euphorbia, in the presence of leguminous crops, by the postemergence application to the foliage of said plants of a novel synergistic combination of an imidazolinyl nicotinic acid, ester or salt with (1) a different imidazolinyl nicotinic acid, ester or salt, (2) an imidazolinyl-3-quino-linecarboxylic acid, ester or salt, or (3) an N-(heterocyclicaminocarbonyl)arylsulfonamide.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: December 26, 1995
    Assignee: American Cyanamid Company
    Inventor: Robert M. Watkins, Jr.
  • Patent number: 5030271
    Abstract: Synergistic herbicidal imidazolinone compositions, and methods for their use in selective postemergence control of undesirable plant species in the presence of crops; particularly for the selective control of undesirable plant species of the genera: Ipomoea, Sorghum and Euphorbia, in the presence of leguminous crops, by the postemergence application to the foliage of said plants of a novel synergistic combination of an imidazolinyl nicotinic acid, ester or salt with (1) a different imidazolinyl nicotinic acid, ester or salt, (2) an imidazolinyl-3-quinolinecarboxylic acid, ester or salt, or (3) an N-(heterocyclicaminocarbonyl)arylsulfonamide.
    Type: Grant
    Filed: October 13, 1988
    Date of Patent: July 9, 1991
    Assignee: American Cyanamid Company
    Inventor: Robert M. Watkins, Jr.