Patents by Inventor Gerald E. Lepone

Gerald E. Lepone 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 ortho-carbomethoxysulfonylureas
    Patent number: 4740234
    Abstract: A designated o-carbomethoxysulfonylurea demonstrates high activity as a herbicide.
    Type: Grant
    Filed: April 24, 1987
    Date of Patent: April 26, 1988
    Assignee: E. I. DuPont De Nemours and Company
    Inventor: Gerald E. Lepone
  • Triazinyl-amino carbonyl-benzene sulfonamides
    Patent number: 4584011
    Abstract: This invention relates to alkyl sulfones which have herbicidal activity and are also useful as plant-growth regulants.
    Type: Grant
    Filed: April 3, 1985
    Date of Patent: April 22, 1986
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Gerald E. Lepone
  • Herbicidal alkyl sulfones
    Patent number: 4528024
    Abstract: This invention relates to alkyl sulfones which have herbicidal activity and are also useful as plant-growth regulants.
    Type: Grant
    Filed: July 16, 1982
    Date of Patent: July 9, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Gerald E. Lepone
  • Organotin insecticidal sulfonamides
    Patent number: 4454135
    Abstract: Novel tetraorganotin benzenesulfonamide compounds are described which possess insecticidal and arachnicidal activity. In addition, novel trifluoroacetate organotin benzenesulfonamide intermediates useful in the synthesis of these tetraorganotin benzenesulfonamide compounds are described.
    Type: Grant
    Filed: January 4, 1983
    Date of Patent: June 12, 1984
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Gerald E. Lepone
  • Agricultural heterocyclic sulfenamides
    Patent number: 4298613
    Abstract: Heterocyclic sulfenamides, such as N-[2-chloro-5-(trifluoromethyl)phenyl]-N-[2,4-dinitro-6-trifluoromethyl)ph enyl]-3-nitro-2-pyridinesulfenamide, are useful as miticides, insecticides, fungicides and ovicides.
    Type: Grant
    Filed: May 5, 1980
    Date of Patent: November 3, 1981
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Gerald E. Lepone