Patents by Inventor Alain J. Ribier

Alain J. Ribier 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).

  • Cosmetic composition based on an aqueous dispersion of small lipid spheres
    Patent number: 5489426
    Abstract: A cosmetic composition which is a dispersion of spheres in an external aqueous phase. The spheres are organized molecular layers of a nonionic lipid material encapsulating an internal aqueous phase. The external aqueous phase contains an oil.
    Type: Grant
    Filed: February 14, 1990
    Date of Patent: February 6, 1996
    Assignee: L'Oreal
    Inventors: Arlette Zabotto, Jacqueline Griat, Rose-Marie Handjani, Guy G. Vanlerberghe, Alain J. Ribier
  • Process for the preparation of stable dispersions of at least one water-immiscible liquid phase in an aqueous phase
    Patent number: 5154854
    Abstract: A process for the preparation of a stable emulsion of at least one water-immiscible liquid phase L in an aqueous phase D is described which comprises mixing the liquid phase or phases L with a dispersion of spheres in an aqueous phase D, the spheres having an average diameter of 0.025 to 5 microns and consisting of substantially concentric lipid laminae encapsulating an aqueous phase E between them, the lipid or lipids constituting the laminae being ionic or nonionic amphiphilic substances capable of forming a lamellar phase in water, and subjecting the whole to mechanical agitation so as to disperse the phase (or phases) L in the phase D in the form of droplets having an average diameter of 0.1 micron to a few microns.
    Type: Grant
    Filed: March 5, 1991
    Date of Patent: October 13, 1992
    Assignee: L'Oreal
    Inventors: Arlette Zabotto, Jacqueline Griat, Rose-Marie J. Handjani, Guy G. Vanlerberghe, Alain J. Ribier
  • Process for the preparation of stable dispersions of at least one water-immiscible liquid phase in an aqueous phase
    Patent number: 5055228
    Abstract: A process for the preparation of a stable emulsion of at least one water-immiscible liquid phase L in an aqueous phase D is described which comprises mixing the liquid phase or phases L with a dispersion of spheres in an aqueous phase D, the spheres having an average diameter of 0.025 to 5 microns and consisting of substantially concentric lipid laminae encapsulating an aqueous phase E between them, the lipid or lipids constituting the laminae being ionic or nonionic amphiphilic substances capable of forming a lamellar phase in water, and subjecting the whole to mechanical agitation so as to disperse the phase (or phases) L in the phase D in the form of droplets having an average diameter of 0.1 micron to a few microns.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: October 8, 1991
    Assignee: L'Oreal
    Inventors: Arlette Zabotto, Jacqueline Griat, Rose-Marie J. Handjani, Guy G. Vanlerberghe, Alain J. Ribier