Granted Patent
Utility
US 5,156,154 · App. 07/667,306
Monitoring the hemodynamic state of a patient from measurements of myocardial contractility using doppler ultrasound techniques
Inventors:
Harry L. Valenta, Jr., Tibor A. Nappholz
Patented Case
View Patent ↗
Granted: Oct 20, 1992
Filed: Mar 8, 1991
Inventors
Harry L. Valenta, Jr.
Tibor A. Nappholz
Assignee (at issue)
Telectronics Pacing 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.