Plastic and nonmetallic article shaping or treating: processes – Formation of solid particulate material directly from molten... – By extrusion spraying or gravity fall through orifice
Reexamination Certificate
2006-12-12
2006-12-12
Theisen, Mary Lynn (Department: 1732)
Plastic and nonmetallic article shaping or treating: processes
Formation of solid particulate material directly from molten...
By extrusion spraying or gravity fall through orifice
C264S005000, C264S012000, C425S006000
Reexamination Certificate
active
07147806
ABSTRACT:
This invention is for an improved process to formulate polymeric microspheres
anospheres 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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Aphios Corporation
Burns & Levinson LLP
Gaudet Stephen J.
Susan Janine M.
Theisen Mary Lynn
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