Granted Patent
Utility
US 5,853,909 · App. 08/956,120
Ion exchange membrane fuel cell power plant with water management pressure differentials
Inventor:
Carl A. Reiser
Patented Case
View Patent ↗
Granted: Dec 29, 1998
Filed: Oct 22, 1997
Inventor
Carl A. Reiser
Assignee (at issue)
International Fuel Cells, LLC
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.