Patents by Inventor Gilles Spenleuhauer

Gilles Spenleuhauer 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).

  • Process for preparing nanoparticles
    Patent number: 5766635
    Abstract: Nanoparticles are prepared by dissolving a poly(ethylene oxide) and/or poly(propylene oxide) polylactic copolymer in an organic solvent followed by formation of nanoparticles by mixing the solution containing the polymer with an aqueous solution and by precipitation, without using an additional colloidal protective agent or by microfluidization and solvent evaporation. Nanoparticles prepared by this method are disclosed.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: June 16, 1998
    Assignee: Rhone-Poulenc Rorer S.A.
    Inventors: Gilles Spenleuhauer, Didier Bazile, Michel Veillard, Christian Prud'Homme, Jean-Paul Michalon