Granted Patent
Utility
US 6,033,646 · App. 09/026,326
Method of preparing fluorinated gas microspheres
Inventors:
Evan C. Unger, Thomas A. Fritz, Terry Matsunaga, VaradaRajan Ramaswami, David Yellowhair, Guanli Wu
Patented Case
View Patent ↗
Granted: Mar 7, 2000
Filed: Feb 19, 1998
Inventors
Evan C. Unger
Thomas A. Fritz
Terry Matsunaga
VaradaRajan Ramaswami
David Yellowhair
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.