Granted Patent
Utility
US 6,214,487 · App. 09/241,190
Integral sensors for monitoring a fuel cell membrane and methods of monitoring
Inventors:
Ronald Kelley, Robert J. Mulligan, Steven D. Pratt, Sivakumar Muthuswamy, Bobby Dean Landreth, Robert W. Pennisi
Patented Case
View Patent ↗
Granted: Apr 10, 2001
Filed: Feb 1, 1999
Inventors
Ronald Kelley
Robert J. Mulligan
Steven D. Pratt
Sivakumar Muthuswamy
Bobby Dean Landreth
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.