Patents by Inventor Keith Douglas Barnes

Keith Douglas Barnes 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).

  • Imidazole Amines As Inhibitors Of Beta-secretase
    Publication number: 20100168091
    Abstract: The present invention provides a compound of formula I and the use thereof for the therapeutic treatment, prevention or amelioration of a disease or disorder characterized by elevated 3-amyloid deposits or 3-amyloid levels in a patient.
    Type: Application
    Filed: March 5, 2010
    Publication date: July 1, 2010
    Applicant: Wyeth LLC
    Inventors: Michael Sotirios Malamas, Keith Douglas Barnes, Matthew Robert Johnson
  • Imidazole amines as inhibitors of ?-secretase
    Patent number: 7700606
    Abstract: The present invention provides a compound of formula I and the use thereof for the therapeutic treatment, prevention or amelioration of a disease or disorder characterized by elevated ?-amyloid deposits or ?-amyloid levels in a patient.
    Type: Grant
    Filed: August 16, 2007
    Date of Patent: April 20, 2010
    Assignee: Wyeth LLC
    Inventors: Michael Sotirios Malamas, Keith Douglas Barnes, Matthew Robert Johnson
  • DIPHENYLIMIDAZOLYL COMPOUNDS AS INHIBITORS OF beta-SECRETASE
    Publication number: 20090042912
    Abstract: The present invention provides a compound of formula I and the use thereof for the therapeutic treatment, prevention or amelioration of a disease or disorder characterized by elevated ?-amyloid deposits or ?-amyloid levels in a patient.
    Type: Application
    Filed: October 7, 2008
    Publication date: February 12, 2009
    Applicant: Wyeth
    Inventors: Michael S. Malamas, James J. Erdei, Iwan S. Gunawan, Keith Douglas Barnes, Matthew Robert Johnson, Yu Hui
  • Diphenylimidazopyrimidines as inhibitors of ?-secretase
    Patent number: 7456186
    Abstract: The present invention provides a compound of formula I and the use thereof for the therapeutic treatment, prevention or amelioration of a disease or disorder characterized by elevated ?-amyloid deposits or ?-amyloid levels in a patient.
    Type: Grant
    Filed: June 15, 2005
    Date of Patent: November 25, 2008
    Assignee: Wyeth
    Inventors: Michael S. Malamas, James J. Erdei, Iwan S. Gunawan, Keith Douglas Barnes, Matthew Robert Johnson, Yu Hui
  • 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
  • Substituted anilide insecticidal agents
    Patent number: 6359009
    Abstract: Pesticidal substituted anilide compounds having the structural formula I and compositions and methods comprising those compounds for the control of insect pests.
    Type: Grant
    Filed: March 26, 1999
    Date of Patent: March 19, 2002
    Assignee: BASF Aktiengesellschaft
    Inventors: Robert Eugene Diehl, Tatao Luo, Michael Frank Treacy, Keith Douglas Barnes, Venkataraman Kameswaran
  • 1,4-diaryl-2,3-difluoro-2-butene insecticidal and acaricidal agents
    Patent number: 6288011
    Abstract: Pesticidal 1,4-diaryl-2,3-difluoro-2-butene compounds having the structural formula I and compositions and methods comprising those compounds for the control of insect and acarid pests.
    Type: Grant
    Filed: November 11, 1998
    Date of Patent: September 11, 2001
    Assignee: American Cyanamid Co.
    Inventors: Terence James Bentley, Keith Douglas Barnes
  • 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
  • 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
  • Arylthio, -sulfinyl and -sulfonyl pyrrole insecticidal agents
    Patent number: 5817691
    Abstract: There are provided arylthio, -sulfinyl and -sulfonyl pyrrole compounds having the structural formula I ##STR1## Further provided are compositions and methods comprising those compounds for the control of insects.
    Type: Grant
    Filed: April 9, 1997
    Date of Patent: October 6, 1998
    Assignee: American Cyanamid Company
    Inventors: Keith Douglas Barnes, Robert Eugene Diehl, Susan Hensen Trotto, Yulin Hu
  • Haloalkylthio,-sulfinyl and -sulfonyl arylpyrrole insecticidal and acaricidal agents
    Patent number: 5739155
    Abstract: Haloalkylthio, -sulfinyl and -sulfonyl arylpyrrole compounds which are effective for the control of insects and acarids are described. A method for the insecticidal and acaricidal use of said compounds and methods for the preparation of said compounds are presented.
    Type: Grant
    Filed: November 7, 1995
    Date of Patent: April 14, 1998
    Assignee: American Cyanamid Co.
    Inventors: Keith Douglas Barnes, Victor Marc Kamhi, Robert Eugene Diehl
  • Difluorovinylsilane insecticidal and acaricidal agents
    Patent number: 5710102
    Abstract: Difluorovinylsilane compounds having the structural formula I ##STR1## and compositions thereof, and methods for the control of insect and acarid pests and protection of plants.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: January 20, 1998
    Assignee: American Cyanamid Company
    Inventors: Keith Douglas Barnes, Yulin Hu