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.

Date of Patent:
Feb. 04, 2014

Filed:

May. 21, 2008
Applicants:

Boris Y. Shekunov, Aurora, OH (US);

Pratibhash Chattopadhyay, North Royalton, OH (US);

Robert W. Huff, North Royalton, OH (US);

Inventors:

Boris Y. Shekunov, Aurora, OH (US);

Pratibhash Chattopadhyay, North Royalton, OH (US);

Robert W. Huff, North Royalton, OH (US);

Assignee:

Ferro Corporation, Cleveland, OH (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29B 9/00 (2006.01); A61K 9/14 (2006.01); A61K 9/00 (2006.01); A61K 9/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method of producing solid composite lipid/drug nanoparticles that includes the steps of: (1) dissolving a lipid and a drug in a suitable organic solvent to form a solution; (2) emulsifying the solution in a liquid to form an emulsion having a discontinuous phase of micelles comprising the organic solvent, the drug and the lipid, and a continuous phase comprising the liquid; and (3) contacting the emulsion with a supercritical fluid under conditions suitable to keep the supercritical fluid in a supercritical state, whereby the supercritical fluid extracts the organic solvent from the micelles, causing them to precipitate as organic-solvent free solid composite lipid/drug nanoparticles suspended or dispersed in the liquid.


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