Granted Patent
Utility
US 6,828,056 · App. 09/965,617
Electrode catalyst composition, electrode, and membrane electrode assembly for electrochemical cells
Inventors:
Trent M. Molter, Jason Shiepe, A. John Speranza
Patented Case
View Patent ↗
Granted: Dec 7, 2004
Filed: Sep 27, 2001
Inventors
Trent M. Molter
Jason Shiepe
A. John Speranza
Assignee (at issue)
PROTON ENERGY 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.