Granted Patent
Utility
US 5,246,707 · App. 07/800,520
Sustained release delivery of water-soluble bio-molecules and drugs using phospholipid-coated microcrystals, microdroplets and high-concentration liposomes
Inventor:
Duncan H. Haynes
Patented Case
View Patent ↗
Granted: Sep 21, 1993
Filed: Dec 3, 1991
Inventor
Duncan H. Haynes
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.