Granted Patent
Utility
US 5,360,604 · App. 08/247,424
X-ray contrast compositions containing an organic crystalline X-ray contrast agent in combination with pharmaceutically acceptable clays
Inventors:
Stephen B. Ruddy, Mary E. Roberts, Gregory L. McIntire, Eugene R. Cooper, Carl R. Illig
Patented Case
View Patent ↗
Granted: Nov 1, 1994
Filed: May 23, 1994
Inventors
Stephen B. Ruddy
Mary E. Roberts
Gregory L. McIntire
Eugene R. Cooper
Carl R. Illig
Assignee (at issue)
Sterling Winthrop 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.