Granted Patent
Utility
US 5,398,680 · App. 07/910,786
Pulse oximeter with improved accuracy and response time
Inventors:
Michael Polson, Gregory L. Morris
Patented Case
View Patent ↗
Granted: Mar 21, 1995
Filed: Jul 8, 1992
Inventors
Michael Polson
Gregory L. Morris
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.