Patents by Inventor Geoffrey David Humble

Geoffrey David Humble 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).

  • Use of non-spreading silicone surfactants in agrochemical compositions
    Patent number: 6734141
    Abstract: This invention provides for, inter alia, a method for increasing the rainfastness of an agrochemical composition without increasing its spreading properties, which comprises adding to said agrochemical composition an effective amount of one or more silicone surfactants of the formula R3Si—O—[RR′SiO—]n—O—SiR3 wherein n is 1 to 3, R is an alkyl radical with 1 to 6 carbon atoms, R′ is a radical of the structure —(CH2)m—O—(C2H4O)y(C2H3R″O)z—Z,  wherein m is 2 to 6, R″ is independantly methyl, ethyl or phenyl, Z is hydrogen, an alkyl radical with 1 to 4 carbon atoms, or an acyl radical with 2 to 6 carbon atoms, y is 6 to 30, z is 0 to 10, with the proviso that the ratio y/z is 1 or greater, and that the total number of alkylene oxide groups n*(y+z) in the siloxane polymer (I) is at least 12.
    Type: Grant
    Filed: November 23, 2001
    Date of Patent: May 11, 2004
    Assignee: Goldschmidt AG
    Inventors: Geoffrey David Humble, Michael Wayne Kennedy, Jörg Simpelkamp
  • Use of non-spreading silicone surfactants in agrochemical compositions
    Publication number: 20030104944
    Abstract: This invention provides for, inter alia, a method for increasing the rainfastness of an agrochemical composition without increasing its spreading properties, which comprises adding to said agrochemical composition an effective amount of one or more silicone surfactants of the formula
    Type: Application
    Filed: November 23, 2001
    Publication date: June 5, 2003
    Inventors: Geoffrey David Humble, Michael Wayne Kennedy, Jorg Simpelkamp