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.:
Date of Patent:
Aug. 24, 1999
Filed:
Feb. 21, 1997
Applicant:
Inventors:
Craig A Herb, Chicago, IL (US);
Liang Bin Chen, Lombard, IL (US);
Judy B Chung, Glenview, IL (US);
Michelle A Long, Lombard, IL (US);
Wei Mei Sun, Palatine, IL (US);
Assignee:
Helene Curtis, Inc., Chicago, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ; A61K / ; A61K / ; B01J / ;
U.S. Cl.
CPC ...
424 7028 ; 8405 ; 8406 ; 8421 ; 8501 ; 424 70121 ; 424 7019 ; 424 702 ; 424 7024 ; 424 706 ; 424401 ; 514937 ; 514975 ; 516 54 ;
Abstract
Water-in-oil-in-water multiple emulsion compositions are disclosed. The multiple emulsion compositions comprise an external aqueous phase optionally incorporating a surfactant system capable of forming liquid crystals as an emulsifier. The internal phase comprises a primary water-in-oil emulsion, wherein the primary emulsion comprises a first topically-active compound, a surfactant phase, an oil phase, and water.