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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 6627603 B1

PDFFull Text
Date of Patent:
Sep. 30, 2003

Filed:

Aug. 10, 1999

Method for releasing an active principle contained a multiple emulsion

Applicant:
Inventors:

Jérôme Bibette, Bordeaux, FR;

Marie-Françoise Ficheux, Gradignan, FR;

Fernando Leal Calderon, La Brede, FR;

Lida Bonnakdar, Talence, FR;

Assignee:

Centre National de la Recherche Scientifiquue (C.N.R.S.), Paris, FR;

Attorney:

Young & Thompson

Primary Examiner:

Jose′ G Dees

Assistant Examiner:

Frank Choi

Int. Cl.
CPC ...
A61K 3/828 ; A61K 9/00 ; A61K 3/843 ; A61K 4/700 ;
U.S. Cl.
CPC ...
A61K 3/828 ; A61K 9/00 ; A61K 3/843 ; A61K 4/700 ;
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.

Find Patent Forward Citations

Bibette, Jérôme. (2003). Method for releasing an active principle contained a multiple emulsion (U.S. Patent No. 6627603). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6627603

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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