Granted Patent
Utility
US 5,714,528 · App. 08/458,667
Contrast media for ultrasonic imaging
Inventors:
Evan C. Unger, Guanli Wu
Patented Case
View Patent ↗
Granted: Feb 3, 1998
Filed: Jun 2, 1995
Inventors
Evan C. Unger
Guanli Wu
Assignee (at issue)
ImaRx 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.