Granted Patent
Utility
US 6,500,217 · App. 09/340,197
Process for applying electrode layers to a polymer electrolyte membrane strip for fuel cells
Inventors:
Karl-Anton Starz, Ralf Zuber, Wolfgang Gottenauer, Knut Fehl, Manfred Diehl
Patented Case
View Patent ↗
Granted: Dec 31, 2002
Filed: Jun 28, 1999
Inventors
Karl-Anton Starz
Ralf Zuber
Wolfgang Gottenauer
Knut Fehl
Manfred Diehl
Assignee (at issue)
Degussa-Huels AG
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.