Granted Patent
Utility
US 5,424,056 · App. 08/236,287
X-ray contrast compositions containing iodoaniline derivatives and pharmaceutically acceptable clays
Inventors:
Stephen B. Ruddy, Gregory L. McIntire, Mary E. Roberts, Thomas J. Caulifield, Eugene R. Cooper
Patented Case
View Patent ↗
Granted: Jun 13, 1995
Filed: Apr 29, 1994
Inventors
Stephen B. Ruddy
Gregory L. McIntire
Mary E. Roberts
Thomas J. Caulifield
Eugene R. Cooper
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.