Patents by Inventor Peter John Wepplo

Peter John Wepplo 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 3-heterocyclic substituted benzisothiazole and benzisoxazole compounds
    Patent number: 6706663
    Abstract: There are provided 3-heterocyclic substituted benzisothiazole and benzisoxazole compounds having the structural formula I where Q, X, X1 and Z are defined as in claim 1. Further provided are compositions and methods comprising those compounds for the control of undesirable plant species.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: March 16, 2004
    Assignee: Wyeth
    Inventors: Peter John Wepplo, Richard Anthony Rampulla, Gavin David Heffernan, Michael Vernie Cossette, Charles Malcolm Langevine, Venkataraman Kameswaran, Robert Eugene Diehl, James Joseph Fiordeliso, Gregory Jay Haley, Michael Anthony Guaciaro
  • Process of the preparation of chiral nicotinic, quinolinic or benzoic acid imidazolinone herbicides
    Patent number: 6441190
    Abstract: There is provided a stereospecific process for the preparation of essentially enantiomerically pure imidazolinone herbicides having the R-configuration via (R) 2-amino-2,3-dimethylbutyronitrile.
    Type: Grant
    Filed: January 14, 2002
    Date of Patent: August 27, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Peter John Wepplo, Thomas Walter Drabb
  • 1-alkyl-3-[1-(substituted phenyl) benzotriazol-6-yl] uracils
    Publication number: 20020111274
    Abstract: There is provided a uracil substituted 1-phenylbenzotriazole compound having the structural formula I.
    Type: Application
    Filed: July 11, 2001
    Publication date: August 15, 2002
    Applicant: BASF Aktiengesellschaft
    Inventors: Robert E. Diehl, Susan Trotto, Michael Anthony Guaciaro, Peter John Wepplo
  • PROCESS FOR THE PREPARATION OF CHIRAL NICOTINIC, QUINOLINIC OR BENZOIC ACID IMIDAZOLINONE HERBICIDES
    Publication number: 20020077253
    Abstract: There is provided a stereospecific process for the preparation of essentially enantiomerically pure imidazolinone herbicides having the R-configuration via (R)2-amino-2, 3-dimethylbutyronitrile.
    Type: Application
    Filed: January 14, 2002
    Publication date: June 20, 2002
    Applicant: Intellectual Property Department
    Inventors: Peter John Wepplo, Thomas Walter Drabb
  • Herbicidal 3 -heterocyclic substituted benzisothiazole and benzisoxazole compounds
    Publication number: 20020028748
    Abstract: There are provided 3-heterocyclic substituted benzisothiazole and benzisoxazole compounds having the structural formula I 1
    Type: Application
    Filed: April 17, 2001
    Publication date: March 7, 2002
    Applicant: Intellectual Property Department BASF Aktiengesellschaft
    Inventors: Peter John Wepplo, Richard Anthony Rampulla, Gavin David Heffernan, Michael Vernie Cossette, Charles Malcolm Langevine, Venkataraman Kameswaran, Robert Eugene Diehl, James Joseph Fiordeliso, Gregory Jay Haley, Michael Anthony Guaciaro
  • Process for the preparation of chiral nicotinic, quinolinic or benzoic acid imidazolinone herbicides
    Patent number: 6339158
    Abstract: There is provided a stereospecific process for the preparation of essentially enantiomerically pure imidazolinone herbicides having the R-configuration via (R)2-amino-2,3-dimethylbutyronitrile.
    Type: Grant
    Filed: May 3, 2000
    Date of Patent: January 15, 2002
    Assignee: American Cyanamid Co.
    Inventors: Peter John Wepplo, Thomas Walter Drabb
  • 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 6-(perfluoroalkyl) uracil compounds from 2-(N,N-disubstituted) amino-4-(perfluoroalkyl)-1,3-oxazin-6-one compounds
    Patent number: 6140270
    Abstract: An improved process for the preparation of 6-(perfluoroalkyl)uracil compounds having the structural formula I ##STR1## from 2-(N,N-disubstituted)amino-4-(perfluoroalkyl)-1,3-oxazin-6-one compounds having the structural formula II ##STR2##
    Type: Grant
    Filed: February 16, 1999
    Date of Patent: October 31, 2000
    Assignee: American Cyanamid Company
    Inventors: Richard Anthony Rampulla, Venkataraman Kameswaran, Peter John Wepplo
  • Process for the preparation of chiral imidazolinone herbicides
    Patent number: 5973154
    Abstract: There is provided a process for the preparation of essentially enantiomerically pure imidazolinone herbicides having the R-configuration via (R)2-amino-2,3-dimethylbutyramide.
    Type: Grant
    Filed: May 3, 1999
    Date of Patent: October 26, 1999
    Assignee: American Cyanamid Company
    Inventors: Thomas Walter Drabb, Peter John Wepplo