Granted Patent
Utility
US 5,417,950 · App. 08/271,688
Process for the purification of nitric oxide
Inventors:
Lien-Lung Sheu, Martin Bulow
Patented Case
View Patent ↗
Granted: May 23, 1995
Filed: Jul 7, 1994
Inventors
Lien-Lung Sheu
Martin Bulow
Assignee (at issue)
The BOC Group Limited
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.