Granted Patent
Utility
US 5,707,608 · App. 08/510,573
Methods of making liposomes containing hydro-monobenzoporphyrin photosensitizer
Inventor:
Ron E. Liu
Patented Case
View Patent ↗
Granted: Jan 13, 1998
Filed: Aug 2, 1995
Inventor
Ron E. Liu
Assignee (at issue)
QLT PhotoTherapeutices 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.