Granted Patent
Utility
US 6,280,505 · App. 09/526,226
Separation of acid gases from gas mixtures
Inventors:
Bernt Helge Torkildsen, Martin Sigmundstad, Harald Linga, Finn P. Nilsen, Per H. Hanssen
Patented Case
View Patent ↗
Granted: Aug 28, 2001
Filed: Mar 15, 2000
Inventors
Bernt Helge Torkildsen
Martin Sigmundstad
Harald Linga
Finn P. Nilsen
Per H. Hanssen
Assignee (at issue)
Den Norske Stats Oljeselskap A.S.
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.