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:
Oct. 05, 1999
Filed:
May. 02, 1997
Applicant:
Inventors:
Pascal Delrieu, Castanet Tolosan, FR;
Li Ding, Castanet Tolosan, FR;
Assignee:
Kobo products s.a.r.l., , FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K / ;
U.S. Cl.
CPC ...
424450 ; 424401 ;
Abstract
Lecithin-type liposomes are stabilized with quaternized alkyated polymers, such as steardimonium hydroxyethylcellulose, to provide excellent stability for cosmetic and pharmaceutical formulations. Temperature, storage, solvent, and acidity stability are described. The stabilized liposomes can serve as vectors for alpha-hydroxy acids and showed no aggregation even after 4 months of storage at pH 2.
Delrieu, Pascal. (1999). Stabilized liposomes (U.S. Patent No. 5962015). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5962015
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile