Granted Patent
Utility
US 6,759,016 · App. 09/994,108
Compact multiple tube steam reformer
Inventors:
Richard A. Sederquist, Alakh Prasad, Biraj Bora, Andreas Gubner
Patented Case
View Patent ↗
Granted: Jul 6, 2004
Filed: Nov 26, 2001
Inventors
Richard A. Sederquist
Alakh Prasad
Biraj Bora
Andreas Gubner
Assignee (at issue)
BALLARD POWER SYSTEMS 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.