Granted Patent
Utility
US 5,285,783 · App. 07/959,742
Sensor, apparatus and method for non-invasive measurement of oxygen saturation
Inventor:
Herbert Secker
Patented Case
View Patent ↗
Granted: Feb 15, 1994
Filed: Oct 13, 1992
Inventor
Herbert Secker
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.