Granted Patent
Utility
US 5,338,864 · App. 07/909,377
Hexadentate ligands useful in radiographic imaging agents
Inventors:
Steven R. Woulfe, Raghavan Rajagopalan
Patented Case
View Patent ↗
Granted: Aug 16, 1994
Filed: Jul 6, 1992
Inventors
Steven R. Woulfe
Raghavan Rajagopalan
Assignee (at issue)
MallincKrodt Medical, 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.