Granted Patent
Utility
US 6,316,138 · App. 08/273,455
Solid oxide electrolyte fuel cell
Inventors:
Tokuki Satake, Kiyoshi Watanabe, Fusayuki Nanjo, Koichi Takenobu, Hitoshi Miyamoto
Patented Case
View Patent ↗
Granted: Nov 13, 2001
Filed: Jul 11, 1994
Inventors
Tokuki Satake
Kiyoshi Watanabe
Fusayuki Nanjo
Koichi Takenobu
Hitoshi Miyamoto
Assignee (at issue)
MITSUBISHI KOGYO KABUSHIKI KAISHA
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.