Granted Patent
Utility
US 5,540,909 · App. 08/314,074
Harmonic ultrasound imaging with microbubbles
Inventor:
Ernest G. Schutt
Patented Case
View Patent ↗
Granted: Jul 30, 1996
Filed: Sep 28, 1994
Inventor
Ernest G. Schutt
Assignee (at issue)
Alliance Pharmaceutical Corp.
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.