Granted Patent
Utility
US 6,833,709 · App. 10/206,014
Low loss fuel cell configuration
Inventor:
Chenggang Xie
Patented Case
View Patent ↗
Granted: Dec 21, 2004
Filed: Jul 26, 2002
Inventor
Chenggang Xie
Assignee (at issue)
Motorola, 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.