Granted Patent
Utility
US 6,740,437 · App. 10/158,705
Method and apparatus for controlling a combined heat and power fuel cell system
Inventors:
Arne Ballantine, Ryan Hallum, John Parks, Dustan Skidmore
Patented Case
View Patent ↗
Granted: May 25, 2004
Filed: May 30, 2002
Inventors
Arne Ballantine
Ryan Hallum
John Parks
Dustan Skidmore
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.