Granted Patent
Utility
US 6,426,158 · App. 09/620,234
Method of diluting hydrogen gas exhausted from a fuel cell
Inventors:
Steven D. Pratt, Sivakumar Muthuswamy, Ronald Kelley, Robert W. Pennisi
Patented Case
View Patent ↗
Granted: Jul 30, 2002
Filed: Jul 20, 2000
Inventors
Steven D. Pratt
Sivakumar Muthuswamy
Ronald Kelley
Robert W. Pennisi
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.