Granted Patent
Utility
US 6,162,334 · App. 09/428,004
Inert anode containing base metal and noble metal useful for the electrolytic production of aluminum
Inventors:
Siba P. Ray, Xinghua Liu
Patented Case
View Patent ↗
Granted: Dec 19, 2000
Filed: Oct 27, 1999
Inventors
Siba P. Ray
Xinghua Liu
Assignee (at issue)
ALCOA 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.