Patents by Inventor Gary Alan Roth

Gary Alan Roth 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).

  • Processes for the preparation of pesticidal compounds
    Patent number: 10100033
    Abstract: This application relates to efficient and economical synthetic chemical processes for the preparation of pesticidal thioethers and pesticidal sulfoxides. Further, the present application relates to certain novel compounds necessary for their synthesis. It would be advantageous to produce pesticidal thioethers and pesticidal sulfoxides efficiently and in high yield from commercially available starting materials.
    Type: Grant
    Filed: December 22, 2017
    Date of Patent: October 16, 2018
    Assignee: Dow AgroSciences LLC
    Inventors: Xiaoyong Li, Erich Molitor, Gary Alan Roth, Matthias S. Ober, Patrick Hanley, Tina T. Staton
  • PROCESSES FOR THE PREPARATION OF PESTICIDAL COMPOUNDS
    Publication number: 20180186766
    Abstract: This application relates to efficient and economical synthetic chemical processes for the preparation of pesticidal thioethers and pesticidal sulfoxides. Further, the present application relates to certain novel compounds necessary for their synthesis. It would be advantageous to produce pesticidal thioethers and pesticidal sulfoxides efficiently and in high yield from commercially available starting materials.
    Type: Application
    Filed: December 22, 2017
    Publication date: July 5, 2018
    Inventors: Xiaoyong LI, Erich MOLITOR, Gary Alan ROTH, Matthias S. OBER, Patrick HANLEY, Tina T. STATON
  • Process for the preparation of 2-trifluoromethyl-5-(1-substituted)alkylpyridines
    Patent number: 8742125
    Abstract: 2-Trifluoromethyl-5-(1-substituted)alkylpyridines of formula (I) wherein R1 and R2 independently represent H, C1-C4 alkyl, or either of R1 or R2 taken together with R3 represent a 4- to 6-membered saturated ring, or R1 taken together with R2 represents a 3- to 6-membered saturated ring optionally substituted with an O or a N atom, R3 represents C1-C4 alkyl or R3 taken together with either of R1 or R2 represent a 4- to 6-membered saturated ring, and X represents CH2, O or S, are produced efficiently and in high yield from an 4-alkoxy-1,1,1-trifluorobut-3-en-2-one (II) wherein R represents a C1-C4 alkyl by condensation with an enamine (III) wherein R1, R2, R3 and X are as previously defined, and R4 and R5 independently represent C1-C8 alkyl, C2-C8 alkenyl, C1-C8 arylalkyl, C1-C8 haloalkyl, C1-C8 alkoxyalkyl, C1-C8 alkylaminoalkyl, aryl or heteroaryl or R4 and R5 taken together with N represent a 5- or 6-membered saturated or unsaturated ring, to provide an intermediate of the formu
    Type: Grant
    Filed: November 23, 2011
    Date of Patent: June 3, 2014
    Assignee: Dow AgroSciences, LLC.
    Inventors: Gary Alan Roth, Douglas C. Bland, James R. McConnell
  • Process for the preparation of 5-substituted-8-alkoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-amines
    Patent number: 8338596
    Abstract: 5-Substituted-8-alkoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-amines are manufactured from 2-substituted-4-amino-5-methoxypyrimidines in a process that avoids hydrazine and cyanogen halide.
    Type: Grant
    Filed: December 14, 2011
    Date of Patent: December 25, 2012
    Assignee: Dow Agrosciences LLC
    Inventors: Craig Bott, Christopher T. Hamilton, Gary Alan Roth
  • Process for the preparation of 5-substituted-8-alkoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-amines
    Patent number: 8143395
    Abstract: 5-Substituted-8-alkoxy[1,2,4]triazolo[1,5-c]pyrimidin-2-amines are manufactured from 2-substituted-4-amino-5-methoxypyrimidines in a process that avoids hydrazine and cyanogen halide.
    Type: Grant
    Filed: May 24, 2011
    Date of Patent: March 27, 2012
    Assignee: Dow AgroSciences LLC
    Inventors: Craig Bott, Christopher T. Hamilton, Gary Alan Roth
  • Process for the preparation of 4-trifluoromethyl-2(1H)-pyridinone
    Patent number: 7488828
    Abstract: 4-Trifluoromethyl-2(1H)-pyridinone is prepared by reaction of 4-alkoxy-1,1,1-trifluorobut-3-en-2-one or 4,4-dialkoxy-1,1,1-trifluorobutan-2-one with a trialkyl phosphonoacetate followed by cyclization.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: February 10, 2009
    Assignee: Dow AgroSciences LLC
    Inventors: Christopher Thomas Hamilton, Michael Frederick Gullo, Michael Allen Gonzalez, Gary Alan Roth, David Bruce Gorman, Joachim Gebhardt, Norbert Götz, Hagen Jaedicke, Guido Mayer, Michael Rack
  • Process to produce halo-4-phenoxyquinolines
    Publication number: 20040044217
    Abstract: The present invention relates to a process for the preparation of halo-4-phenoxyquinolines.
    Type: Application
    Filed: June 30, 2003
    Publication date: March 4, 2004
    Inventors: Karl Leopold Krumel, Ruth Cezar Reed, Thomas A. Olmstead, Gary Alan Roth, Ian Robert King, Donald Neil Brattesani, Kent Douglas Campbell, John Davies