Patents by Inventor Francois Darchy

Francois Darchy 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 compositions comprising N-phosphonomethylglycine and alkyl polyoxyethylene phosphoric acid ester surfactants
    Patent number: 5180414
    Abstract: Liquid herbicidal compositions comprising aqueous solutions containing:(a) N-phosphonomethylglycine or one of its derivatives, in the amount of at least 40 grams of glyphosate equivalent per liter of solution; and(b) a surfactant having activating character, of the formula ##STR1## wherein R is an alkyl radical having 4 to 12 carbon atoms, n is an integer from 2 to 10 and M is a hydrogen, sodium, ammonium or alkylammonium.
    Type: Grant
    Filed: May 21, 1991
    Date of Patent: January 19, 1993
    Assignee: Rhone-Poulenc Agrochimie
    Inventors: Francois Darchy, Jean-Claude Zobel