Granted Patent
Utility
US 5,320,965 · App. 07/768,661
Stable hemoglobin reference solution
Inventor:
Ching-Chun Chiang
Patented Case
View Patent ↗
Granted: Jun 14, 1994
Filed: Sep 27, 1991
Inventor
Ching-Chun Chiang
Assignee (at issue)
Bionostics, 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.