Granted Patent
Utility
US 6,830,737 · App. 10/235,534
Apparatus for preparing microparticles using liquid-liquid extraction
Inventor:
J. Michael Ramstack
Patented Case
View Patent ↗
Granted: Dec 14, 2004
Filed: Sep 6, 2002
Inventor
J. Michael Ramstack
Assignee (at issue)
Alkermes Controlled Therapeutics, Inc.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.