Granted Patent
Utility
US 6,514,480 · App. 09/485,983
Method for producing contrast agents largely free of side-effects
Inventor:
Bernhard Sixt
Patented Case
View Patent ↗
Granted: Feb 4, 2003
Filed: Apr 28, 2000
Inventor
Bernhard Sixt
Assignee (at issue)
Amersham Health AS
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.