Patents by Inventor William Francis Smith, III

William Francis Smith, III 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 oxadiazolidines
    Patent number: 6737383
    Abstract: Compounds of Formula (1) and processes for their preparation, their N-oxides and agriculturally suitable salts, are disclosed which are useful for controlling undesired vegetation wherein Q, X1, X2, X3, R1, R2, R6 and R7 are as defined in the disclosure. Also disclosed are novel intermediates of Formula (5), Formula (8) and Formula (20) wherein R27 is —(CR6R7)q—Q; R6, R7, q, Q, X1 and X2 are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula (1) and a method for controlling undesired vegetation which involves contacting the vegetation or its environment with an effective amount of a compound of Formula (1).
    Type: Grant
    Filed: June 29, 2001
    Date of Patent: May 18, 2004
    Assignee: The Regents of the University of California
    Inventors: Gary David Annis, George Chih-Shu Chiang, David Raymond Forney, Kanu Maganbhai Patel, Morris Padgett Rorer, William Francis Smith, III, Thomas Martin Stevenson, King-Mo Sun, Chi-Ping Tseng
  • Herbicidal mixtures
    Patent number: 6046134
    Abstract: This invention relates to herbicidal mixtures comprising 2-(4-methylsulfonyl-2-nitrobenzoyl)-1,3-cyclohexanedione in combination with one or more sulfonylureas selected from nicosulfuron, rimsulfuron, thifensulfuron methyl, primisulfuron methyl, prosulfuron, and halosulfuron methyl, herbicidal compositions of the mixtures, and a method of using the mixtures to control undesired vegetation.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: April 4, 2000
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Francis Patrick De Gennaro, William Francis Smith, III
  • Herbicidal mixtures comprising anilofos and other herbicides
    Patent number: 5798317
    Abstract: This invention relates to herbicidal mixtures of anilofos with one or more of the compounds selected from azimsulfuron, metsulfuron methyl, chlorimuron ethyl, bensulfuron methyl, ethametsulfuron methyl, nicosulfuron, rimsulfuron, sulfometuron methyl, thifensulfuron methyl, tribenuron methyl, triflusulfuron methyl, methyl 2-????(4,6-dimethoxy-2-pyrimidinyl)amino!carbonyl!amino!sulfonyl!-6-(trifl uoromethyl)-3-pyridinecarboxylate, chlorsulfuron, propanil and hexazinone, herbicidal compositions of said mixtures, and a method for the use of said mixtures to control undesired vegetation.
    Type: Grant
    Filed: October 6, 1997
    Date of Patent: August 25, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Thalia Pappas-Fader, Daniel Carl Leep, Marc Ruggiero, William Francis Smith, III, Alexander Yung Shing Yang
  • Herbicidal mixture of anilofos and propanil
    Patent number: 5736486
    Abstract: This invention relates to herbicidal mixtures of anilofos with propanil, or one or more of the compounds selected from azimsulfuron, metsulfuron methyl, chlorimuron ethyl, bensulfuron methyl, ethametsulfuron methyl, nicosulfuron, rimsulfuron, sulfometuron methyl, thifensulfuron methyl, tribenuron methyl, triflusulfuron methyl, methyl 2-????(4,6-dimethoxy-2-pyrimidinyl)amino!carbonyl!amino!sulfonyl!-6-(trifl uoro-methyl)-3-pyridinecarboxylate, chlorsulfuron, and hexazinone, herbicidal compositions of said mixtures, and a method for the use of said mixtures to control undesired vegetation.
    Type: Grant
    Filed: October 27, 1995
    Date of Patent: April 7, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Thalia Pappas-Fader, Daniel Carl Leep, Marc Ruggiero, William Francis Smith, III, Alexander Yung-Shing Yang
  • Herbicidal mixtures
    Patent number: H1711
    Abstract: This invention relates to herbicidal mixtures of chlorimuron ethyl and sulfentrazone, herbicidal compositions of said mixtures, and a method for the use of said mixtures to control undesired vegetation.
    Type: Grant
    Filed: February 3, 1997
    Date of Patent: February 3, 1998
    Assignee: E. I. du Pont
    Inventor: William Francis Smith, III