Granted Patent
Utility
US 5,169,637 · App. 07/679,569
Stable plurilamellar vesicles
Inventors:
Robert P. Lenk, Michael W. Fountain, Andrew S. Janoff, Mircea C. Popescu, Steven J. Weiss, Richard S. Ginsberg, Marc J. Ostro, Sol M. Gruner
Patented Case
View Patent ↗
Granted: Dec 8, 1992
Filed: Apr 2, 1991
Inventors
Robert P. Lenk
Michael W. Fountain
Andrew S. Janoff
Mircea C. Popescu
Steven J. Weiss
Richard S. Ginsberg
Marc J. Ostro
Sol M. Gruner
Assignee (at issue)
The Liposome Company, 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.