Granted Patent
Utility
US 6,725,074 · App. 10/018,069
Quality indicator for measurement signals, in particular, for medical measurement signals such as those used in measuring oxygen saturation
Inventor:
Siegfried Kästle
Patented Case
View Patent ↗
Granted: Apr 20, 2004
Filed: May 29, 2002
Inventor
Siegfried Kästle
Assignee (at issue)
KONINKLIJKE PHILIPS ELECTRONICS NV
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.