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:
Mar. 30, 2004
Filed:
Jan. 31, 2003
Applicant:
Inventors:
Shawn L. Lyons, Cincinnati, OH (US);
Steven G. Wright, Madeira, OH (US);
Assignee:
Alkermas Controlled Therapeutics Inc. II, Cambridge, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61K 9/50 ; B01J 1/302 ; B32B 5/16 ;
U.S. Cl.
CPC ...
A61K 9/50 ; B01J 1/302 ; B32B 5/16 ;
Abstract
Apparatus and method for preparing microparticles. An emulsion is formed by combining two phases in a static mixing assembly. The static mixing assembly preferably includes a preblending static mixer and a manifold. The emulsion flows out of the static mixing assembly into a quench liquid whereby droplets of the emulsion form microparticles. The residence time of the emulsion in the static mixing assembly is controlled to obtain a predetermined particle size distribution of the resulting microparticles.