Granted Patent
Utility
US 6,696,190 · App. 09/896,333
Fuel cell system and method
Inventor:
Prathap Haridoss
Patented Case
View Patent ↗
Granted: Feb 24, 2004
Filed: Jun 29, 2001
Inventor
Prathap Haridoss
Assignee (at issue)
Plug Power 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.