Patents by Inventor William Kirkland Brewster

William Kirkland Brewster 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).

  • Substituted thieno[2,3-D]pyrimidines as fungicides
    Patent number: 8008487
    Abstract: The present invention provides compounds of formula (I), thieno[2,3-d]pyrimidines, having fungicidal activity.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: August 30, 2011
    Assignee: Dow AgroSciences LLC
    Inventors: William Kirkland Brewster, Carla Jean Rasmussen Klittich, Terry William Balko, Nneka Tuere Breaux, William Randal Erickson, James Edward Hunter, Christian Thomas Lowe, Michael John Ricks, Thomas Lyman Siddall, Carla Nanette Yerkes, Yuanming Zhu
  • Use of malonomicin and analogs in fungicidal applications
    Patent number: 7887827
    Abstract: The present invention is related to the use of malonomicin compounds and derivatives in fungicidal applications and to new derivatives of malonomicin.
    Type: Grant
    Filed: January 20, 2006
    Date of Patent: February 15, 2011
    Assignee: Dow AgroSciences LLC
    Inventors: Todd Lowell Werk, Carl Evan Snipes, Paul Richard Graupner, Cathy Lynn Peacock, Eleanor Lougee Chapin, William Kirkland Brewster, Frederick Richard Green, III
  • Thieno-pyrimidine compounds having fungicidal activity
    Patent number: 7531482
    Abstract: The present invention relates to thieno[2,3-d]-pyrimidine compounds having fungicidal activity. Specifically, the present invention relates to compounds having the Formula (I): wherein each R1, R2 and R3 is independently selected from the group consisting of H, halogen, and alkyl; A is selected from the group consisting of H and alkyl; W is selected from the group consisting of NH and O; D is selected from O, NH and S; E is (—C(O)—)p—R?, wherein p is 0 or 1 and R? is selected from the group consisting of optionally substituted rings selected from phenyl.
    Type: Grant
    Filed: October 21, 2005
    Date of Patent: May 12, 2009
    Assignee: Dow AgroSciences LLC
    Inventors: William Kirkland Brewster, David Anthony Demeter, William Randal Erickson, Carla Jean Rasmussen Klittich, Christian Thomas Lowe, Brent Jeffrey Rieder, Jaime Susanne Nugent, Carla Nanette Yerkes, Yuanming Zhu, Terry William Balko
  • Methylidene mevalonates and their use as herbicides
    Patent number: 7393812
    Abstract: Methylidene mevalonic acid, a material isolated from a fungal extract, and its primary alcohol and carboxylic acid derivatives, are potent herbicides demonstrating a broad spectrum of weed control. These materials are useful for weed control and for the cultivation of organically grown crops.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: July 1, 2008
    Assignee: Dow AgroSciences LLC
    Inventors: Ben Clifford Gerwick, III, Paul Richard Graupner, Stephen Craig Fields, Paul Richard Schmitzer, William Kirkland Brewster
  • 6-aryl-4-aminopicolinates and their use as herbicides
    Patent number: 6784137
    Abstract: 4-Aminopicolinic acids having aryl or heteroaryl substituents in the 6-position and their amine and acid derivatives are potent herbicides demonstrating a broad spectrum of weed control.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: August 31, 2004
    Assignee: Dow AgroSciences LLC
    Inventors: Terry William Balko, Ann Marie Buysse, Jeffrey Brian Epp, Stephen Craig Fields, Christian Thomas Lowe, Renee Joan Keese, John Sanders Richburg, III, James Melvin Ruiz, Monte Ray Weimer, Renard Antonio Green, Roger Eugene Gast, Kristy Bryan, Nicholas Martin Irvine, William Chi-Leung Lo, William Kirkland Brewster, Jeffery Dale Webster