Granted Patent
Utility
US 6,805,990 · App. 10/065,476
Flat plate fuel cell stack
Inventor:
Brian N. Gorbell
Patented Case
View Patent ↗
Granted: Oct 19, 2004
Filed: Oct 22, 2002
Inventor
Brian N. Gorbell
Assignee (at issue)
FUELCELL ENERGY, 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.