Granted Patent
Utility
US 5,160,726 · App. 07/650,957
Filter sterilization for production of colloidal, superparamagnetic MR contrast agents
Inventors:
Lee Josephson, Ernest V. Groman, Stephen Palmacci
Patented Case
View Patent ↗
Granted: Nov 3, 1992
Filed: Feb 5, 1991
Inventors
Lee Josephson
Ernest V. Groman
Stephen Palmacci
Assignee (at issue)
Advanced Magnetics, 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.