Granted Patent
Utility
US 6,589,549 · App. 09/906,041
Bioactive agent delivering system comprised of microparticles within a biodegradable to improve release profiles
Inventors:
Chung Shih, Gaylen M. Zentner
Patented Case
View Patent ↗
Granted: Jul 8, 2003
Filed: Jul 13, 2001
Inventors
Chung Shih
Gaylen M. Zentner
Assignee (at issue)
Macromed, 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.