Granted Patent
Utility
US 6,018,060 · App. 09/166,342
Membrane process and apparatus for argon purging from oxidation reactors
Inventors:
Richard W. Baker, Douglas Gottschlich
Patented Case
View Patent ↗
Granted: Jan 25, 2000
Filed: Oct 5, 1998
Inventors
Richard W. Baker
Douglas Gottschlich
Assignee (at issue)
Membrane Technology and Research, 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.