Patents Represented by Attorney Reed A. Coats
  • Patent number: 8324132
    Abstract: A herbicide mixture comprising nicosulfuron, metsulfuron-methyl and glyphosate is disclosed. A method for controlling undesired vegetation comprising contacting the undesired vegetation or its environment with a herbicidally effective amount of the herbicide mixture is also disclosed.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: December 4, 2012
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Jeffrey Harve Meredith, Richard Manly Edmund, Jr.
  • Patent number: 8012499
    Abstract: Disclosed are compounds of Formula (1), including all geometric and stereoisomers, N-oxides, and salts thereof, wherein R3 is —C(?B)C(?O)L or —C(R11R12)C(?O)L; R4 is, inter alia, H, C1-C4 alkyl or C2-C6 alkoxycarbonyl; or R3 and R4 are taken together as —C(?O)C(?O)—, —C(?NR13)C(?O)— or —C(R11R12)C(?O)—. B is O, NR13, NOR13 Or NNR14 R15; L is OH or NR14 R15; and X, R1, R2, R11, R12, R13, R14, R15 and J are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula (1) and methods for controlling an invertebrate pest comprising contacting the invertebrate pest or its environment with a biologically effective amount of a compound or a composition of the invention.
    Type: Grant
    Filed: August 22, 2006
    Date of Patent: September 6, 2011
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Bruce Lawrence Finkelstein, Stephen Frederick McCann
  • Patent number: 7932395
    Abstract: This invention provides compounds of Formula I, methods for their preparation and use for preparing compounds of Formula II wherein R1, R2, R3, R5, R6, X and n are as defined in the disclosure. This invention also discloses preparation of compounds of Formula III wherein R1, R2, R7, R8, R9 and n are as defined in the disclosure. This invention also pertains to certain compounds of Formula 4 and 6 used to prepare compounds of Formula I. wherein R1, R2, R5, X and n are as defined in the disclosure.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: April 26, 2011
    Assignee: E. I. du Pont de Nemours and Company
    Inventor: Gary David Annis
  • Patent number: 7834186
    Abstract: A method is disclosed for preparing a 2-substituted-5-oxo-3-pyrazolidinecarboxylate compound of Formula I The method comprises contacting a succinic acid derivative of the formula R1OC(O)C(H)(X)C(R2a)(R2b)C(O)Y (i.e. Formula II) wherein X and Y are leaving groups and L, R1, R2a and R2b are as defined in the disclosure, with a substituted hydrazine of the formula LNHNH2 (i.e. Formula III) in the presence of a suitable acid scavenger and solvent. Also disclosed is the preparation of compounds of Formula IV wherein X1, R6, R7, R8a, R8b, R9, and n are as defined in the disclosure. Also disclosed is a composition comprising on a weight basis about 20 to 99% of the compound of Formula II wherein R1, R2a, R2b, R3, R4 and R5 are as defined in the disclosure; X is Cl, Br or I; and Y is F, Cl, Br or I; provided that when R2a and R2b are each H, and X and Y are each Cl then R1 is other than benzyl and when R2a and R2b are each phenyl, and X and Y are each Cl, then R1 is other than methyl or ethyl.
    Type: Grant
    Filed: September 19, 2008
    Date of Patent: November 16, 2010
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Gary David Annis