Patents by Inventor Thomas M. Stevenson

Thomas M. Stevenson 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).

  • Insecticidal anthranilamides
    Patent number: 7338978
    Abstract: This invention provides compounds of Formula 1, their N-oxides and agriculturally suitable salts wherein A, B, J, R1, R2, R3 and R4 and n are as defined in the disclosure. Also disclosed are methods for controlling arthropods comprising contacting the arthropods or their environment with an arthropodicidally effective amount of a compound of Formula 1 and compositions containing the compounds of Formula 1.
    Type: Grant
    Filed: August 9, 2005
    Date of Patent: March 4, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: George Philip Lahm, Brian J. Myers, Thomas P. Selby, Thomas M. Stevenson
  • Insecticidal anthranilamides
    Patent number: 6995178
    Abstract: This invention provides compounds of Formula 1, their N-oxides and agriculturally suitable salts wherein A, B, J, R1, R2, R3 and R4 and n are as defined in the disclosure. Also disclosed are methods for controlling arthropods comprising contacting the arthropods or their environment with an arthropodicidally effective amount of a compound of Formula 1 and compositions containing the compounds of Formula 1.
    Type: Grant
    Filed: October 31, 2003
    Date of Patent: February 7, 2006
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: George P. Lahm, Brian J. Myers, Thomas P. Selby, Thomas M. Stevenson
  • Insecticidal anthranilamides
    Publication number: 20040142984
    Abstract: This invention provides compounds of Formula 1, their N-oxides and agriculturally suitable salts 1
    Type: Application
    Filed: October 31, 2003
    Publication date: July 22, 2004
    Inventors: George P. Lahm, Brian J. Myers, Thomas P. Selby, Thomas M. Stevenson
  • Insecticidal anthranilamides
    Patent number: 6747047
    Abstract: This invention provides compounds of Formula (1), their N-oxides and agriculturally suitable salts wherein A, B, J, R1, R2, R3 and R4 and n are as defined in the disclosure. Also disclosed are methods for controlling arthropods comprising contacting the arthropods or their environment with an arthropodicidally effective amount of a compound of Formula (1) and compositions containing the compounds of Formula (1).
    Type: Grant
    Filed: August 28, 2002
    Date of Patent: June 8, 2004
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: George P. Lahm, Brian J. Myers, Thomas P. Selby, Thomas M. Stevenson
  • Substituted pyrimidine and pyridine herbicides
    Publication number: 20040033896
    Abstract: Compounds of formula (I), and their N-oxides and agriculturally suitable salts, are disclosed which are useful for controlling undesired vegetation, wherein J is (J-1), (J-2), (J-3), (J-4), (J-5), (J-6) or (J-7); and J, W, X, Y, Z, A, R<1>-R<8> are as defined in the disclosure. Also disclosed are compositions containing the compounds of formula (I) and a method for controlling undesired vegetation which involves contacting the vegetation or its environment with an effective amount of a compound of formula (I).
    Type: Application
    Filed: January 23, 2003
    Publication date: February 19, 2004
    Inventors: Gerard Koether, Thomas P. Selby, Thomas M. Stevenson
  • Insecticidal anthranilamides
    Publication number: 20030229050
    Abstract: This invention provides compounds of Formula (1), their N-oxides and agriculturally suitable salts wherein A, B, J, R1, R2, R3 and R4 and n are as defined in the disclosure. Also disclosed are methods for controlling arthropods comprising contacting the arthropods or their environment with an arthropodicidally effective amount of a compound of Formula (1) and compositions containing the compounds of Formula (1).
    Type: Application
    Filed: August 28, 2002
    Publication date: December 11, 2003
    Inventors: George P. Lahm, Brian J. Myers, Thomas P. Selby, Thomas M. Stevenson
  • Substituted phenylheterocyclic herbicides
    Patent number: 6358885
    Abstract: This invention relates to certain phenylheterocyclic compounds, herbicidal compositions thereof and a method for their use as general and selective preemergent or postemergent herbicides or plant growth regulants.
    Type: Grant
    Filed: April 15, 1999
    Date of Patent: March 19, 2002
    Assignees: Mississippi State University, Research Technology Corporation Mississippi State
    Inventors: Thomas P. Selby, Thomas M. Stevenson
  • Substituted phenylheterocyclic herbicides
    Patent number: 5977028
    Abstract: This invention relates to certain phenylhetercyclic compounds, herbicidal compositions thereof and a method for their use as general and selective preemergent or postemergent herbicides or plant growth regulants.
    Type: Grant
    Filed: May 7, 1997
    Date of Patent: November 2, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Thomas P. Selby, Thomas M. Stevenson
  • Substituted phenylheterocyclic herbicides
    Patent number: 5670455
    Abstract: This invention relates to certain phenylheterocyclic compounds, herbicidal compositions thereof and a method for their use as general and selective preemergent or postemergent herbicides or plant growth regulants.
    Type: Grant
    Filed: July 27, 1994
    Date of Patent: September 23, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Thomas P. Selby, Thomas M. Stevenson
  • Arthropodicidal oxazolines and thiazolines
    Patent number: 5633271
    Abstract: Arthropodicidally active compounds, compositions and a method for using them, the compounds having the formula ##STR1## wherein A, Q, Z, (E).sub.q, R.sup.1 and R.sup.2 are as defined in the text.
    Type: Grant
    Filed: January 16, 1996
    Date of Patent: May 27, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Victor E. Amoo, George P. Lahm, Thomas M. Stevenson
  • Herbicidal benzodioxoles and benzodioxanes
    Patent number: 5633218
    Abstract: Compounds of Formula I, and their N-oxides and agriculturally-suitable salts, are disclosed which are useful for controlling undesired vegetation ##STR1## wherein: ##STR2## T is O or S; W is a single bond, O, S or NR.sup.6 ;X is N or CH;Y is N or CH;Z is N or CR.sup.7 provided that when Z is CR.sup.7, then Y is N;R.sup.6 is H, CH.sub.3 or OCH.sub.3 ;m is 1 or 2; andR.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.7 are as defined in the disclosure.Also disclosed are compositions containing the compounds of Formula I and a method for controlling undesired vegetation which involves contacting the vegetation or its environment with an effective amount of a compound of Formula I.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: May 27, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Donna L. Spedding, Thomas M. Stevenson
  • N-acylated pyrazolines
    Patent number: 5591764
    Abstract: N-sulfenylated and N-acylated pyrazoline arthropodicides, compositions containing them and methods for controlling arthropods by applying compounds of the invention to them or to their environment. The pyrazolines are selected from those of Formulae I to III wherein R.sub.1, R.sub.2, R.sub.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: January 7, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Mohamed A. H. Fahmy, deceased, Charles R. Harrison, George P. Lahm, Thomas M. Stevenson
  • Arthropodicidal tetrahydropyridazines
    Patent number: 5591729
    Type: Grant
    Filed: January 4, 1995
    Date of Patent: January 7, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Charles R. Harrison, George P. Lahm, Thomas M. Stevenson
  • Arthropodicidal oxazines and thiazines
    Patent number: 5538967
    Abstract: Substituted oxazines and thiazines, arthropodicidal compositions containing them and methods of controlling arthropods are provided. The oxazines and thiazines having the formula ##STR1## wherein Z is O or S; Q is phenyl or pyridyl substituted with alkenyl, alkynyl or substituted phenyl; andA, E, q, R.sup.1 and R.sup.2 are as described.
    Type: Grant
    Filed: January 18, 1995
    Date of Patent: July 23, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Jeffrey K. Long, Thomas M. Stevenson
  • Herbicidal oxazine ethers
    Patent number: 5510318
    Abstract: The present invention relates to novel oxazine ether derivatives of Formula I, to compositions containing them, to methods of using the compounds or compositions to control the growth of undesired vegetation and novel intermediates for their preparation. ##STR1## wherein: R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, and Q are defined in the text.
    Type: Grant
    Filed: May 25, 1993
    Date of Patent: April 23, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Kanu M. Patel, Thomas M. Stevenson
  • N-acylated pyrazolines, compositions and use
    Patent number: 5491162
    Abstract: N-sulfenylated and N-acylated pyrazoline arthropodicides, compositions containing them and methods for controlling arthropods by applying compounds of the invention to them or to their environment. The pyrazolines are selected from those of Formulae I to III wherein R.sub.1, R.sub.2, R.sub.
    Type: Grant
    Filed: July 22, 1994
    Date of Patent: February 13, 1996
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Mohamed A. H. Fahmy, Charles R. Harrison, George P. Lahm, Thomas M. Stevenson
  • Arthropodicidal pyrazolines, pyrazolidines and hydrazines
    Patent number: 5474998
    Abstract: Arthropodicidal pyrazoline, pyrazolidine and hydrazine compounds, including all their geometric and stereoisomers, agriculturally suitable salts thereof and compositions containing them; and a method for controlling arthropods employing said compounds which are: ##STR1## wherein Q, X, X.sup.1, Y and G are as defined in the text.
    Type: Grant
    Filed: February 16, 1993
    Date of Patent: December 12, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Charles R. Harrison, Renee M. Lett, Stephen F. McCann, Rafael Shapiro, Thomas M. Stevenson
  • Arthropodicidal fused tetrahydropyridazines
    Patent number: 5380718
    Abstract: Arthropodicidal tetrahydropyridazines of Formulae I and II, ##STR1## wherein Q,X,X.sup.1 Y, and G are as defined in the text, compositions containing them and their use in the control of arthropods.
    Type: Grant
    Filed: November 12, 1992
    Date of Patent: January 10, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Charles R. Harrison, George P. Lahm, Thomas M. Stevenson
  • Insecticidal, acaricidal and fungicidal aminopyrimidines
    Patent number: 5378708
    Abstract: Compounds of the formula: ##STR1## wherein A, Q and R.sup.2 to R.sup.5 are as defined in the text, compositions containing them and methods for using them to control insects, acarids and fungi.
    Type: Grant
    Filed: May 13, 1993
    Date of Patent: January 3, 1995
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Joseph E. Drumm, III, Renee M. Lett, Thomas M. Stevenson
  • Arthropodicidal amidrazone ureas
    Patent number: 5328915
    Abstract: Arthropodicidal compounds, compositions and arthropodicidal use of compounds having the formula ##STR1## wherein A, X, R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, m and n are as defined in the text.
    Type: Grant
    Filed: September 17, 1992
    Date of Patent: July 12, 1994
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Jeffrey K. Long, Patrick D. Lowder, Thomas M. Stevenson