Granted Patent
Utility
US 6,514,636 · App. 09/736,549
Ultra-smooth dielectric members for liquid electrolyte fuel cells
Inventors:
Jian Li, Hansraj C. Maru
Patented Case
View Patent ↗
Granted: Feb 4, 2003
Filed: Dec 13, 2000
Inventors
Jian Li
Hansraj C. Maru
Assignee (at issue)
FUELCELL ENERGY, 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.