Granted Patent
Utility
US 5,989,191 · App. 09/100,504
Using doppler techniques to measure non-uniform rotation of an ultrasound transducer
Inventor:
John Frank Scampini
Patented Case
View Patent ↗
Granted: Nov 23, 1999
Filed: Jun 19, 1998
Inventor
John Frank Scampini
Assignee (at issue)
Hewlett-Packard Company, L.P.
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.