Granted Patent
Utility
US 5,985,246 · App. 08/888,426
Contrast agents for ultrasonic imaging and methods for preparing the same
Inventor:
Evan C. Unger
Patented Case
View Patent ↗
Granted: Nov 16, 1999
Filed: Jul 8, 1997
Inventor
Evan C. Unger
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.