Granted Patent
Utility
US 6,217,850 · App. 09/084,105
Method of making lyophilized microbubble compositions useful as contrast agents
Inventors:
Harald Dugstad, Jo Klaveness, Pal Rongved, Roald Skurtveit, Jorunn Braenden
Patented Case
View Patent ↗
Granted: Apr 17, 2001
Filed: May 26, 1998
Inventors
Harald Dugstad
Jo Klaveness
Pal Rongved
Roald Skurtveit
Jorunn Braenden
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.