Granted Patent
Utility
US 5,962,016 · App. 08/974,296
Multivesicular liposomes utilizing neutral lipids to modify in vivo release
Inventor:
Randall C. Willis
Patented Case
View Patent ↗
Granted: Oct 5, 1999
Filed: Nov 19, 1997
Inventor
Randall C. Willis
Assignee (at issue)
DepoTech Corporation
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.