Granted Patent
Utility
US 6,093,152 · App. 09/183,488
Pulse width modulation valve control for vital sign monitors
Inventor:
Paul D. Patterson
Patented Case
View Patent ↗
Granted: Jul 25, 2000
Filed: Oct 30, 1998
Inventor
Paul D. Patterson
Assignee (at issue)
Protocol Systems, 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.