Granted Patent
Utility
US 6,727,016 · App. 09/925,948
Direct methanol fuel cell including a water recovery and re-circulation system and method of fabrication
Inventors:
Joseph W. Bostaph, Daniel S. Marshall
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Aug 9, 2001
Inventors
Joseph W. Bostaph
Daniel S. Marshall
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.