Granted Patent
Utility
US 6,036,644 · App. 09/092,354
Enhanced methods of ultrasound imaging using multiple frequencies
Inventor:
Ernest G. Schutt
Patented Case
View Patent ↗
Granted: Mar 14, 2000
Filed: Jun 5, 1998
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.