Granted Patent
Utility
US 6,468,682 · App. 09/577,407
Ion exchange membrane fuel cell
Inventors:
William A. Fuglevand, Peter David DeVries, Glen Alden Lloyd, David R. Lott, John P. Scartozzi
Patented Case
View Patent ↗
Granted: Oct 22, 2002
Filed: May 17, 2000
Inventors
William A. Fuglevand
Peter David DeVries
Glen Alden Lloyd
David R. Lott
John P. Scartozzi
Assignee (at issue)
Avista Laboratories, 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.