Granted Patent
Utility
US 6,399,231 · App. 09/602,361
Method and apparatus for regenerating the performance of a PEM fuel cell
Inventors:
John Donahue, Thomas F. Fuller, Deliang Yang, Jung S. Yi
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Jun 22, 2000
Inventors
John Donahue
Thomas F. Fuller
Deliang Yang
Jung S. Yi
Assignee (at issue)
UTC 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.