Granted Patent
Utility
US 6,606,509 · App. 09/811,328
Method and apparatus for improving the accuracy of noninvasive hematocrit measurements
Inventor:
Joseph M. Schmitt
Patented Case
View Patent ↗
Granted: Aug 12, 2003
Filed: Mar 16, 2001
Inventor
Joseph M. Schmitt
Assignee (at issue)
NELLCOR PURITAN BENNETT LLC
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.