Granted Patent
Utility
US 4,975,468 · App. 07/331,713
Fluorinated microemulsion as oxygen carrier
Inventor:
Seang H. Yiv
Patented Case
View Patent ↗
Granted: Dec 4, 1990
Filed: Apr 3, 1989
Inventor
Seang H. Yiv
Assignee (at issue)
Affinity Biotech, 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.