Granted Patent
Utility
US 5,840,967 · App. 08/845,134
Process for the preparation of contrast agents
Inventors:
Trygve Gulbrandsen, Odd Einar Ingvoldstad, Lars Terje Holmaas
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: Apr 21, 1997
Inventors
Trygve Gulbrandsen
Odd Einar Ingvoldstad
Lars Terje Holmaas
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.