Granted Patent
Utility
US 5,891,465 · App. 08/645,894
Delivery of biologically active material in a liposomal formulation for administration into the mouth
Inventors:
Brian Charles Keller, Daniel L. Fisher, Steven Kiss
Patented Case
View Patent ↗
Granted: Apr 6, 1999
Filed: May 14, 1996
Inventors
Brian Charles Keller
Daniel L. Fisher
Steven Kiss
Assignee (at issue)
BioZone Laboratories, 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.