Patents by Inventor George Levitt

George Levitt 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).

  • Agricultural sulfonamides
    Patent number: 4687507
    Abstract: N-(heterocyclicaminocarbonyl)arylsulfonamides in which the aryl radical is substituted in the 2-position by a carboxy radical, ester, thioester, or amide thereof; e.g. N-[(4,6-dimethylpyrimidin-2-yl)-aminocarbonyl]-2-methoxycarbonylbenzenesul fonamide or N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-methoxycarbonylbenze nesulfonamide; are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.
    Type: Grant
    Filed: August 9, 1985
    Date of Patent: August 18, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Agriculture sulfonamides
    Patent number: 4684395
    Abstract: N-(heterocyclicaminocarbonyl)arylsulfonamides and thienylsulfonamides in which the heterocyclic radical is disubstituted; e.g., N-[[4-(2-methoxyethyoxy)-6-methylpyrimidin-2-yl]aminocarbonyl]-2-nitrobenz enesulfonamide and N-[[4-(2,2,2-trifluoroethoxy)-6-methylpyrimidin-2-yl]aminocarbonyl]-2-nitr obenzenesulfonamide; are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.
    Type: Grant
    Filed: November 21, 1984
    Date of Patent: August 4, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Herbicidal alkenyl sulfonamides
    Patent number: 4680053
    Abstract: Alkenylsulfonylureas have been found to be effective as herbicides and plant growth regulants.
    Type: Grant
    Filed: July 13, 1984
    Date of Patent: July 14, 1987
    Assignee: E.I. Du Pont de Nemours and Company
    Inventors: George Levitt, William T. Zimmerman
  • Herbicidal 2,6-disubstituted benzylsulfonamides and benzenesulfamates
    Patent number: 4678500
    Abstract: This invention relates to novel disubstituted benzylsulfonamides and benzenesulfamates, agriculturally suitable compositions thereof and a method of their use as preemergent or postemergent herbicides or plant growth regulants.
    Type: Grant
    Filed: August 21, 1985
    Date of Patent: July 7, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: James V. Hay, George Levitt
  • Thiophenesulfonamides
    Patent number: 4668281
    Abstract: Thiophenesulfonamides useful as herbicides and plant growth regulants, herbicidal compositions containing thiophenesulfonamides, and methods of applying the compositions to areas containing undesired vegetation are described.
    Type: Grant
    Filed: April 10, 1986
    Date of Patent: May 26, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Herbicidal acetals and ketals
    Patent number: 4659369
    Abstract: Novel furan- and thiophenesulfonamides such as 3-(1,3-dioxolan-2-yl)-N-[(4-methoxy-6-methyl-1,3-5-triazin-2-yl)aminocarbo nyl]-2-thiophenesulfonamide and N-[(4,6-dimethoxypyrimidin-2-yl)aminocarbonyl]-3-(1,3-dioxolan-2-yl)-2-thi ophenesulfonamide are highly active pre-emergent and/or post-emergent herbicides.
    Type: Grant
    Filed: July 16, 1985
    Date of Patent: April 21, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Herbicidal sulfonamides
    Patent number: 4655822
    Abstract: N-(heterocyclicaminocarbonyl)arylsulfonamides in which at least one of the acyclic nitrogens thereof is substituted by lower alkyl, are useful for the regulation of plant growth and as general and selective herbicides.
    Type: Grant
    Filed: November 15, 1984
    Date of Patent: April 7, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Alkyl sulfonyl sulfonamides
    Patent number: 4655821
    Abstract: This invention relates to alkyl sulfonyl sulfonamides which are useful as herbicides and plant growth regulants.
    Type: Grant
    Filed: July 12, 1985
    Date of Patent: April 7, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: George Levitt, Anthony D. Wolf
  • Agriculture sulfonamides
    Patent number: 4647303
    Abstract: N-(heterocyclicaminocarbonyl)arylsulfonamides in which the aryl radical is substituted in the 2-position by a carboxy radical, ester, thioester, or amide thereof; e.g. N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]-2-methoxycarbonylbenzenesulf onamide or N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-methoxycarbonylbenze nesulfonamide; are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.
    Type: Grant
    Filed: March 18, 1986
    Date of Patent: March 3, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Herbicidal thiophenesulfonamides
    Patent number: 4645529
    Abstract: Designated thiophenesulfonamides are useful as herbicides and in particular in the control of broadleaf weeds.
    Type: Grant
    Filed: November 8, 1985
    Date of Patent: February 24, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Agricultural sulfonamides
    Patent number: 4627873
    Abstract: N-(heterocyclicaminocarbonyl)arylsulfonamides in which the aryl radical is substituted in the 2-position by a carboxy radical, ester, thioester, or amide thereof; e.g. N-[(4,6-dimethylpyrimidin-2-yl)-aminocarbonyl]-2-methoxycarbonylbenzenesul fonamide or N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-methoxycarbonylbenze nesulfonamide; are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.
    Type: Grant
    Filed: July 11, 1985
    Date of Patent: December 9, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Agricultural ureas and isoureas
    Patent number: 4599103
    Abstract: This invention relates to ureas and isoureas which are useful as herbicides and plant growth regulants. In particular, compounds of the instant invention have demonstrated great selectivity.
    Type: Grant
    Filed: October 15, 1984
    Date of Patent: July 8, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Agricultural sulfonamides
    Patent number: 4592978
    Abstract: N-(heterocyclicaminocarbonyl)arylsulfonamides in which the aryl radical is substituted in the 2-position by a carboxy radical, ester, thioester, or amide thereof; e.g. N-[(4,6-dimethylpyrimidin-2-yl)-aminocarbonyl]-2-methoxycarbonylbenzenesul fonamide or N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-methoxycarbonylbenze nesulfonamide; are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.
    Type: Grant
    Filed: December 22, 1982
    Date of Patent: June 3, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Agricultural sulfonamides
    Patent number: 4591378
    Abstract: N-(heterocyclicaminocarbonyl)arylsulfonamides in which the aryl radical is substituted in the 2-position by a carboxy radical, ester, thioester, or amide thereof; e.g. N-[(4,6-dimethylpyrimidin-2-yl)-aminocarbonyl]-2-methoxycarbonylbenzenesul fonamide or N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-methoxycarbonylbenze nesulfonamide; are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.
    Type: Grant
    Filed: February 21, 1984
    Date of Patent: May 27, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Sulfamoyl chlorides
    Patent number: 4569995
    Abstract: Sulfamoyl chlorides are useful intermediates for the preparation of highly herbicidal end products.
    Type: Grant
    Filed: June 20, 1983
    Date of Patent: February 11, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Herbicidal heterocyclic alkylaminocarbonylsulfonamides
    Patent number: 4565567
    Abstract: Heterocyclic alkylaminocarbonylsulfonamides, such as N'-[(4,6-dimethylpyrimidin-2-yl)methylaminocarbonyl]-N,N-dimethyl-1,2-benz enedisulfonamide, are useful as herbicides.
    Type: Grant
    Filed: December 6, 1984
    Date of Patent: January 21, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Agricultural sulfonamides
    Patent number: 4564384
    Abstract: N-(heterocyclicaminocarbonyl)arylsulfonamides in which the aryl radical is substituted in the 2-position by a carboxy radical, ester, thioester, or amide thereof; e.g. N-[(4,6-dimethylpyrimidin-2-yl)-aminocarbonyl]-2-methoxycarbonylbenzenesul fonamide or N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-methoxycarbonylbenze nesulfonamide; are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.
    Type: Grant
    Filed: August 15, 1983
    Date of Patent: January 14, 1986
    Assignee: E. I. Du Pont de Nemours And Company
    Inventor: George Levitt
  • Herbicidal sulfonamides
    Patent number: 4557752
    Abstract: Pyrrole sulfonamides are useful as agricultural chemicals.
    Type: Grant
    Filed: July 26, 1984
    Date of Patent: December 10, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: John C. Budzinski, George Levitt
  • Herbicidal sulfonamides, compositions and use
    Patent number: 4545808
    Abstract: N-(heterocyclicaminocarbonyl)arylsulfonamides in which the aryl radical is substituted in the 2-position by a carboxy radical, ester, thioester, or amide thereof; e.g. N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]-2-methoxycarbonylbenzenesulf onamide or N-[(4,6-dimethoxy-1,3,5-triazin-2-yl)aminocarbonyl]-2-methoxycarbonylbenze nesulfonamide; are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.
    Type: Grant
    Filed: March 30, 1983
    Date of Patent: October 8, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt
  • Agricultural pyridinesulfonamides
    Patent number: 4544401
    Abstract: N-(heterocyclicaminocarbonyl)pyridinesulfonamides; are useful for the regulation of plant growth and as pre-emergence and post-emergence herbicides.
    Type: Grant
    Filed: January 22, 1981
    Date of Patent: October 1, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: George Levitt