Granted Patent
Utility
US 5,517,993 · App. 08/477,936
Copolymers and their use as contrast agents in magnetic resonance imaging and in other applications
Inventors:
Evan C. Unger, Guanli Wu
Patented Case
View Patent ↗
Granted: May 21, 1996
Filed: Jun 7, 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.