Patents by Inventor Mark G. Dolson

Mark G. Dolson 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 pyridine herbicides
    Patent number: 5196045
    Abstract: A compound having the structural formula ##STR1## wherein: Y is selected from O and S;R.sub.1 and R.sub.4 are independently selected from fluorinated methyl, chlorofluorinated methyl, and C.sub.1 -C.sub.4 alkyl, provided that not both R.sub.1 and R.sub.4 may be C.sub.1 -C.sub.4 alkyl;R.sub.2 is selected from hydrogen, lower alkyl, haloalkyl, alkenyl, alkynyl, haloalkenyl, and a cation;R.sub.3 is selected from C.sub.1 -C.sub.5 alkyl, cycloalkyl, cycloalkylalkyl, hydroxy, and alkoxy; andX is selected from ##STR2## in which R.sub.8 is selected from H, alkyl and CF.sub.3 and R.sub.10 is selected from F, Cl, --OR.sup.1, --SR.sup.1, --NHR.sup.1, --N(R.sup.1).sub.2, phenyl, substituted phenyl, and --P(OR.sup.1).sub.2where R.sup.1 is as defined above; ##STR3## wherein R.sup.1 is as defined above; ##STR4## wherein R.sub.14 and R.sub.15 are independently selected from hydrogen and alkyl; and --N.dbd.C.dbd.O and their use as herbicides.
    Type: Grant
    Filed: March 20, 1991
    Date of Patent: March 23, 1993
    Assignee: Monsanto Company
    Inventors: Len F. Lee, Mark G. Dolson
  • Substituted pyridine herbicides
    Patent number: 5019153
    Abstract: Disclosed are pyridine herbicides characterized by substitution with a fluorine-containing methyl group at the 2- or 6-position, a carboxylic acid-derived group at the 3-position, and a halogen or a substituted nitrogen-containing group at the 5-position.
    Type: Grant
    Filed: December 1, 1989
    Date of Patent: May 28, 1991
    Assignee: Monsanto Company
    Inventors: Len F. Lee, Mark G. Dolson
  • Substituted 2,6-substituted pyridine compounds having herbicidal activity
    Patent number: 4936905
    Abstract: Disclosed herein are substituted pyridine-3-monocarboxylate compounds in which a substituent is bonded to the pyridine ring at the 5-position through an oxygen atom.
    Type: Grant
    Filed: April 22, 1988
    Date of Patent: June 26, 1990
    Assignee: Monsanto Company
    Inventors: Maria L. Miller, Len F. Lee, Mark G. Dolson
  • Certain 3-amino-5-carboxy (or thio carboxy) pyridine herbicides
    Patent number: 4885026
    Abstract: Disclosed are pyridine herbicides characterized by substitution with a fluorine-containing methyl group at the 2- or 6-position, a carboxylic acid-derived group at the 3-position, and a halogen or a substituted nitrogen-containing group at the 5-position.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: December 5, 1989
    Assignee: Monsanto Company
    Inventors: Len F. Lee, Mark G. Dolson
  • 5-sulfur substituted pyridine monocarboxylic herbicides
    Patent number: 4789395
    Abstract: Disclosed herein are compounds of the general formula ##STR1## which are useful as herbicides.
    Type: Grant
    Filed: May 12, 1986
    Date of Patent: December 6, 1988
    Assignee: Monsanto Company
    Inventors: Len F. Lee, Kerry L. Spear, Mark G. Dolson