Granted Patent
Utility
US 5,869,023 · App. 08/569,134
Composition for MRI comprising both a positive and a negative contrast agent
Inventors:
Anders Ericcson, Anne Kjersti Fahlvik, Anders Hemmingsson, Mats Wikstrom, Audun ksendal, Tore Bach-Gansmo
Patented Case
View Patent ↗
Granted: Feb 9, 1999
Filed: Jan 26, 1996
Inventors
Anders Ericcson
Anne Kjersti Fahlvik
Anders Hemmingsson
Mats Wikstrom
Audun ksendal
Tore Bach-Gansmo
Assignee (at issue)
NYCOMED IMAGING 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.