Granted Patent
Utility
US 6,207,311 · App. 09/342,868
Solid oxide fuel cell operable over wide temperature range
Inventors:
Li Baozhen, Roswell J. Ruka, Subhash C. Singhal
Patented Case
View Patent ↗
Granted: Mar 27, 2001
Filed: Jun 29, 1999
Inventors
Li Baozhen
Roswell J. Ruka
Subhash C. Singhal
Assignee (at issue)
Siemens Westinghouse Power Corporation
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.