Patents by Inventor David Allen Hunt

David Allen Hunt 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).

  • Method for Controlling Harmful Fungi
    Publication number: 20100099774
    Abstract: The present invention relates to a method for controlling phytopathogenic fungior harmful fungi in the protection of materials, wherein the fungi or the materials, plants, soil or seed to be protected against fungal attack are treated with a fungicidally effective amount of an amidrazone of the formula (I) wherein R, R1, R2, R3, A, B, W, Y and n have the meanings as defined in the description.
    Type: Application
    Filed: January 28, 2008
    Publication date: April 22, 2010
    Applicant: BASF SE
    Inventors: Henry Van Tuyl Cotter, David Allen Hunt, David G. Kuhn
  • Processes for the preparation of 1,4-diaryl-2-fluoro-1,3-butadiene and 1,4-diaryl-2-fluoro 2 butene compounds
    Patent number: 6646166
    Abstract: The present invention provides an improved process for the preparation of 1,4-diaryl-2-fluoro-1,3-butadiene compounds of the structural formula I In addition, the present invention provides an improved process for the preparation of 1,4-diaryl-2-fluoro-2-butadiene compounds of the structural formula IV
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: November 11, 2003
    Assignee: BASF Aktiengesellschaft
    Inventors: Yulin Hu, David Allen Hunt, Keith Douglas Barnes
  • Process for the preparation of 1,4-diaryl-2-fluoro-4-cyano-2-butenes and intermediates useful therefor
    Publication number: 20030100789
    Abstract: The present invention provides a process for the preparation of pesticidal 1,4-diaryl-2-fluoro-4-cyano-2-butene compounds having the structural formula I 1
    Type: Application
    Filed: July 9, 2002
    Publication date: May 29, 2003
    Inventors: Yulin Hu, David Allen Hunt
  • Process for the preparation of 1,4-diaryl-2-fluoro-4-cyano-2-butenes and intermediates useful therefor
    Patent number: 6444838
    Abstract: The present invention provides a process for the preparation of pesticidal 1,4-diaryl-2-fluoro-4-cyano-2 -butene compounds having the structural formula I and intermediates useful therefor.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: September 3, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Yulin Hu, David Allen Hunt
  • Process for the preparation of 1,4-diaryl-2-fluoro-4-cyano-2-butenes and intermediates useful therefor
    Publication number: 20020019556
    Abstract: The present invention provides a process for the preparation of pesticidal 1,4-diaryl-2-fluoro-4-cyano-2 -butene compounds having the structural formula I 1
    Type: Application
    Filed: May 4, 2001
    Publication date: February 14, 2002
    Applicant: Intl Prop Dept, BASF Aktiengesellschaft
    Inventors: Yulin Hu, David Allen Hunt
  • 1,4-diaryl-2-fluoro-1-buten-3-ol compounds and their use in the preparation of 1,4-diaryl-2-fluoro-1,3-butadiene and 1,4-diaryl-2-fluoro-2-butene compounds
    Patent number: 6342642
    Abstract: The present invention provides novel 1,4-diaryl-2-fluoro-1-buten-3-ol compounds of the structural formula I a method for the preparation of those formula I compounds, and the use of those formula I compounds in the preparation of 1,4-diaryl-2-fluoro-1,3-butadiene compounds of formula II and 1,4-diaryl-2-fluoro-2-butene compounds of formula III
    Type: Grant
    Filed: August 13, 2001
    Date of Patent: January 29, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Yulin Hu, David Allen Hunt
  • Processes for the preparation of 2-arylvinyl alkyl ether and 1,4-diaryl-2-fluoro-2-butene compounds
    Patent number: 6291721
    Abstract: An improved process for the preparation of 2-arylvinyl alkyl ether compounds of the structural formula I In addition, the present invention provides an improved process for the preparation of 1,4-diaryl-2-fluoro-2-butene compounds of the structural formula V
    Type: Grant
    Filed: August 12, 1999
    Date of Patent: September 18, 2001
    Assignee: American Cyanamid Co.
    Inventors: Yulin Hu, David Allen Hunt, Weiguo Liu
  • Process and intermediate compounds for the preparation of pesticidal fluoroolefin compounds
    Patent number: 6262319
    Abstract: A process and intermediate compounds for the preparation of fluoroolefin compounds which are useful as pesticidal agents.
    Type: Grant
    Filed: December 21, 1998
    Date of Patent: July 17, 2001
    Assignee: American Cyanamid Co.
    Inventors: Keith Douglas Barnes, Yulin Hu, David Allen Hunt
  • Insecticidal biphenylthiohydrazides
    Patent number: 6242647
    Abstract: The present invention provides N-biphenylthiohydrazone derivatives of formula I and compositions and methods for the use thereof in the control of insect and acarid pests and for the protection of crops therefrom.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: June 5, 2001
    Assignee: American Cyanamid Company
    Inventors: Robert Eugene Diehl, David Allen Hunt, Susan Hensen Trotto
  • 3-(1,2-Benzisothiazol- and isoxazol-5-yl)-2,4(1H,3H)-pyrimidinedione or thione and 3-(1,2-benzisothiazol- and isoxazol-5-yl)-4(3H)-pyrimidinone or thione herbicidal agents
    Patent number: 6156700
    Abstract: There are provided 3-(1,2-benzisothiazol- and isoxazol-5-yl)-2,4(1H,3H)-pyrimidinedione or thione compounds of formula I and 3-(1,2-benzisothiazol- and isoxazol-5-yl)-4(3H)-pyrimidinone or thione compounds of formula II ##STR1## Further provided are compositions and methods comprising those compounds for the control of undesirable plant species.
    Type: Grant
    Filed: September 14, 1998
    Date of Patent: December 5, 2000
    Assignee: American Cyanmid Company
    Inventors: Peter John Wepplo, Mark Christopher Manfredi, Richard Anthony Rampulla, Michael Vernie Cossette, Michael Anthony Guaciaro, Gregory Jay Haley, Billy Gene Bullock, Sergio Ivan Alvarado, Keith Douglas Barnes, Gary Allen Meier, David Allen Hunt, Marianne Carlsen, Gavin David Heffernan
  • Process for the preparation of pesticidal fluoroolefin compounds
    Patent number: 5892131
    Abstract: A process and intermediate compounds for the preparation of fluoroolefin compounds which are useful as pesticidal agents.
    Type: Grant
    Filed: May 29, 1997
    Date of Patent: April 6, 1999
    Assignee: American Cyanamid Company
    Inventors: Keith Douglas Barnes, Yulin Hu, David Allen Hunt
  • Amidrazones and their use as insecticidal and acaricidal agents
    Patent number: 5693860
    Abstract: There are provided substituted acid amide, arylhydrazone compounds (amaidrazones) of formula I ##STR1## the use thereof for the control of insect and acarid pests and methods and compositions for the protection of crops from the damage and loss caused by said pests.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: December 2, 1997
    Assignee: American Cyanamid Company
    Inventors: Joseph Augustus Furch, David George Kuhn, David Allen Hunt
  • Amidrazones and their use as insecticidal and agents
    Patent number: 5646278
    Abstract: There are provided substituted acid amide, arylhydrazone compounds (amidrazones) of formula I ##STR1## the use thereof for the control of insect and acarid pests and methods and compositions for the protection of crops from the damage and loss caused by said pests.
    Type: Grant
    Filed: April 28, 1995
    Date of Patent: July 8, 1997
    Assignee: American Cyanamid Company
    Inventors: Joseph Augustus Furch, David George Kuhn, David Allen Hunt