Patents by Inventor Lida Bonnakdar

Lida Bonnakdar 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).

  • Method for releasing an active principle contained a multiple emulsion
    Patent number: 6627603
    Abstract: A method for the controlled release of an active principle contained in a multiple water-in-oil-in-water emulsion characterized in that the multiple emulsion comprises an invert emulsion Ei with an aqueous phase A1 containing at least a hydrophilic active principle. The emulsion Ei is dispersed in the form of direct emulsion droplets Ed, in a continuous aqueous phase A2, with the two emulsions Ed and Ei stabilized by at least a surfactant, present in their respective continuous phases. The multiple emulsion is brought in the presence of an effective amount of an agent for transforming it into a direct emulsion and induce the release of the active principle, contained in the aqueous phase A1 of emulsion Ei, in the aqueous phase A2.
    Type: Grant
    Filed: August 10, 1999
    Date of Patent: September 30, 2003
    Assignee: Centre National de la Recherche Scientifiquue (C.N.R.S.)
    Inventors: Jérôme Bibette, Marie-Françoise Ficheux, Fernando Leal Calderon, Lida Bonnakdar