Granted Patent
Utility
US 5,458,857 · App. 08/155,642
Combined reformer and shift reactor
Inventors:
Robert D Collins, Michael J. Oakley
Patented Case
View Patent ↗
Granted: Oct 17, 1995
Filed: Nov 22, 1993
Inventors
Robert D Collins
Michael J. Oakley
Assignee (at issue)
ROLLS-ROYCE plc
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.