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:
Jul. 02, 1991
Filed:
Jun. 06, 1990
Applicant:
Inventor:
Kevin R Bracken, Sunland, CA (US);
Assignee:
Vestar, Inc., San Dimas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D / ;
U.S. Cl.
CPC ...
159-63 ; 159 49 ; 159D / ; 202236 ; 203D / ;
Abstract
A thin-film evaporator for preparing liposomes in commercial quantities provides a film-forming zone of uniform thickness which enables the uniform evaporation of an organic solvent to form a film of uniform thickness, followed by in situ hydration of the film in an aqueous phase by agitation with a rotor.