Patents by Inventor David Lubetzky

David Lubetzky 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).

  • Low ecotoxic formulations of pesticides
    Patent number: 5531995
    Abstract: There is provided an EW pesticidal formulation comprising:(a) 190 g/l to 350 g/l of at least one pesticide selected from the group consisting of chlorpyrifos, endosulfan, and imazalil.(b) 150 g/l to 400 g/l of the methyl ester of rosin.(c) 30 g/l to 200 g/l of at least one surfactant.(d) water to make up to one liter, but not less than 200 g/l;and optionally containing a polar solvent completely or partially soluble in water. This affords formulations which have low irritations and surprisingly improved biological activity to target species.
    Type: Grant
    Filed: January 20, 1995
    Date of Patent: July 2, 1996
    Assignee: Makhteshim Chemical Works Ltd.
    Inventors: David Lubetzky, Maurice Frances
  • Method of preparing 2,3,6-trichloropyridine and 2,3,5,6-tetrachloropyridine in the gas phase
    Patent number: 4810797
    Abstract: 2,3,6-Trichloropyridine and 2,3,5,6-tetrachloropyridine are prepared by continuously reacting chlorine in the gas phase with one or more compounds such as 2,6-dichloropyridine and 2,3,6-trichloropyridine at a temperature of from about 200.degree. C. in the presence of an amount of catalyst effective to catalyze the reaction.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: March 7, 1989
    Assignee: Makhteshim Chemical Works Ltd.
    Inventors: Joseph Sharvit, David Lubetzky, Abraham A. Pereferkovich
  • Process for preparing 2,3,4,5-tetrachloro-6-(trichloromethyl) pyridine
    Patent number: 4801716
    Abstract: Heptachloropicoline is prepared by continuously reacting chlorine in the gas phase at an elevated temperature with one or more lower-chlorinated 6-trichloromethyl pyridines in the presence of an effective amount of ferric chloride.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: January 31, 1989
    Assignee: Makhteshim Chemical Works Ltd.
    Inventors: Joseph Sharvit, David Lubetzky
  • Vapor phase production of chlorinated pyridines from alpha-picoline
    Patent number: 4752644
    Abstract: 2-Chloropyridine, 2,6-dichloropyridine, 2,3,6-trichloropyridine, and 2,3,5,6-tetrachloropyridine are prepared by reacting alpha-picoline in the gas phase with choline at temperature from about 200.degree. C. in the presence of water and an amount of catalyst effective to catalyze the reaction.
    Type: Grant
    Filed: March 30, 1987
    Date of Patent: June 21, 1988
    Assignee: Makhteshim Chemical Works Ltd.
    Inventors: Joseph Sharvit, David Lubetzky, Abraham A. Pereferkovich