Patents Examined by Golan M. M. Shameem
  • Patent number: 8367584
    Abstract: Disclosed are compounds of Formula 1, including all geometric and stereoisomers, N-oxides, and salts thereof, wherein R1, R2, R3, R4, R5 and R6 are as defined in the disclosure. Also disclosed are compositions containing the compounds of Formula 1 and methods for controlling an invertebrate pest comprising contacting the invertebrate pest or its environment with a biologically effective amount of a compound or a composition of the invention.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: February 5, 2013
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Jeffrey Keith Long, Thomas Paul Selby, Ming Xu
  • Patent number: 6417371
    Abstract: The present invention relates to a process process for the preparation of the compound of the formula I where the compound of the formula III is reacted with oxalyl chloride and the product obtained is treated with hydrazine and an alkali metal hydroxide in the aqueous phase at elevated temperature, after treatment is complete a three-phase system is produced by addition of an ether and the compound of the formula I is obtained by acidifying the middle phase. The invention moreover relates to a polymorph of the compound of the formula I.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: July 9, 2002
    Assignee: Merckle GmbH
    Inventors: Thomas Kammermeier, Stefan Laufer, Philipp Merckle, Hans-Guenter Striegel