Patents by Inventor Rafael Shapiro

Rafael Shapiro 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).

  • Herbicidal N-hydroxy-N'-sulfonylguanidines
    Patent number: 4689070
    Abstract: Novel N-hydroxy-N'-sulfonylguanidine compounds are described which possess significant herbicidal and plant growth regulant activity for control of undesired vegetation.
    Type: Grant
    Filed: May 22, 1985
    Date of Patent: August 25, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Rafael Shapiro
  • Herbicidal thiophenesulfonamides
    Patent number: 4684393
    Abstract: Thiophenesulfonamides such as N-[(4,6-dimethylpyrimidin-2-yl)aminocarbonyl]-3-(isoxazol-3-yl)-2-thiophen esulfonamide are useful as herbicides and plant growth regulants.
    Type: Grant
    Filed: April 23, 1985
    Date of Patent: August 4, 1987
    Assignee: E. I. DuPont de Nemours and Company
    Inventor: Rafael Shapiro
  • Herbicidal sulfonamides
    Patent number: 4655823
    Abstract: Certain substituted pyrimidine sulfonylureas, such as 3-[[[(4-dimethoxymethyl)-6-methylpyrimidin-2-yl]aminocarbonyl]aminosulfony l]-2-thiophenecarboxylic acid, methyl ester, are selective pre-emergence and/or post-emergence herbicides.
    Type: Grant
    Filed: May 15, 1985
    Date of Patent: April 7, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Rafael Shapiro
  • Thiophene or furan herbicides
    Patent number: 4639265
    Abstract: Novel thiophenes or furans show herbicidal activity and may also have post- and pre-emergence crop tolerance, especially to corn.
    Type: Grant
    Filed: August 12, 1985
    Date of Patent: January 27, 1987
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Rafael Shapiro
  • Herbicidal sulfonamides
    Patent number: 4629494
    Abstract: Certain substituted pyrimidine sulfonylureas, such as 3-[[[(4-(dimethoxymethyl)-6-methylpyrimidin-2-yl]aminocarbonyl]aminosulfon yl]-2-thiophenecarboxylic acid, methyl ester, are selective pre-emergence and/or post-emergence herbicides.
    Type: Grant
    Filed: April 15, 1985
    Date of Patent: December 16, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Rafael Shapiro
  • Herbicidal ortho-(azinyl)-benzenesulfonamides
    Patent number: 4606754
    Abstract: This invention relates to novel ortho-(azinyl)benzenesulfonamides, such as N-[(4-methoxy-6-methylpyrimidin-2-yl)aminocarbonyl]-2-(2-pyridinyl)benzene sulfonamide, and their use as pre-emergent or post-emergent herbicides or plant growth regulants.
    Type: Grant
    Filed: December 3, 1984
    Date of Patent: August 19, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Rafael Shapiro
  • Herbicidal N-[pyrimidine aminocarbonyl]isothiazole sulfonamides
    Patent number: 4604130
    Abstract: Certain N-[(heterocyclic)aminocarbonyl]isothiazolesulfonamides, such as methyl 4-[[(4-methoxy-6-methylpyrimidin-2-yl)aminocarbonyl]aminosulfonyl]-3-isoth iazolecarboxylate, are useful as herbicides and/or plant growth regulants.
    Type: Grant
    Filed: August 13, 1984
    Date of Patent: August 5, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Rafael Shapiro
  • Thiophene or furan herbicides
    Patent number: 4547217
    Abstract: Novel thiophenes or furans show herbicidal activity and may also have post- and pre-emergence crop tolerance, especially to corn.
    Type: Grant
    Filed: January 27, 1984
    Date of Patent: October 15, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Rafael Shapiro
  • Herbicidal ortho-(azinyl)-benzenesulfonamides
    Patent number: 4494980
    Abstract: This invention relates to novel ortho-(azinyl)benzenesulfonamides, such as N-[(4-methoxy-6-methylpyrimidin-2-yl)aminocarbonyl]-2-(2-pyridinyl)benzene -sulfonamide, and their use as pre-emergent or post-emergent herbicides or plant growth regulants.
    Type: Grant
    Filed: October 28, 1982
    Date of Patent: January 22, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Rafael Shapiro
  • Thiophene or furan herbicides
    Patent number: 4441910
    Abstract: Novel thiophenes or furans show herbicidal activity and may also have post- and pre-emergence crop tolerance, especially to corn.
    Type: Grant
    Filed: February 8, 1982
    Date of Patent: April 10, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Rafael Shapiro