Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
December 12, 2006
0Patent Application Number
108403080
Date Filed
May 6, 2004
0Patent Primary Examiner
Patent abstract
This invention is for an improved process to formulate polymeric microspheres/nanospheres and encapsulate therapeutic proteins and other useful substances. Non-toxic supercritical or near-critical fluids with/without polar cosolvents are utilized to solubilize biodegradable polymers and form uniform polymer microspheres and nanospheres to encapsulate proteins with controlled-release characteristics.
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