Granted Patent
Utility
US 5,686,198 · App. 08/608,889
Low cost stable air electrode material for high temperature solid oxide electrolyte electrochemical cells
Inventors:
Lewis J. H. Kuo, Prabhakar Singh, Roswell J. Ruka, Theodore R. Vasilow, Raymond J. Bratton
Patented Case
View Patent ↗
Granted: Nov 11, 1997
Filed: Feb 29, 1996
Inventors
Lewis J. H. Kuo
Prabhakar Singh
Roswell J. Ruka
Theodore R. Vasilow
Raymond J. Bratton
Assignee (at issue)
Westinghouse Electric Company LLC
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.