Granted Patent
Utility
US 5,196,183 · App. 07/803,293
Contrast agents for ultrasound imaging
Inventors:
Joseph S. Yudelson, Susan Power
Patented Case
View Patent ↗
Granted: Mar 23, 1993
Filed: Dec 4, 1991
Inventors
Joseph S. Yudelson
Susan Power
Assignee (at issue)
Sterling Winthrop 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.