Granted Patent
Utility
US 6,022,525 · App. 08/517,590
Preparation of diagnostic agents
Inventors:
Andrew Sutton, Richard A. Johnson, Peter J. Senior, David Heath
Patented Case
View Patent ↗
Granted: Feb 8, 2000
Filed: Aug 22, 1995
Inventors
Andrew Sutton
Richard A. Johnson
Peter J. Senior
David Heath
Assignee (at issue)
Quadrant Healthcare (UK) Limited
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.