Granted Patent
Utility
US 5,501,915 · App. 08/429,460
Porous electrode for electrode assemblies in a fuel cell
Inventors:
Graham Alan Hards, Thomas Robertson Ralph
Patented Case
View Patent ↗
Granted: Mar 26, 1996
Filed: Apr 26, 1995
Inventors
Graham Alan Hards
Thomas Robertson Ralph
Assignee (at issue)
JOHNSON MATTHEY PUBLIC LIMITED COMPANY
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.