Granted Patent
Utility
US 6,543,236 · App. 10/160,944
Hyperpolarized noble gas extraction methods, masking methods, and associated transport containers
Inventors:
David L. Zollinger, Kenton C. Hasson
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: May 31, 2002
Inventors
David L. Zollinger
Kenton C. Hasson
Assignee (at issue)
MEDI-PHYSICS, 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.