Granted Patent
Utility
US 6,767,663 · App. 09/836,119
Oxygen separation through hydroxide-conductive membrane
Inventors:
Lin Li, Wenbin Yao, Muguo Chen
Patented Case
View Patent ↗
Granted: Jul 27, 2004
Filed: Apr 17, 2001
Inventors
Lin Li
Wenbin Yao
Muguo Chen
Assignee (at issue)
Inventqjaya Sdn Bhd
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.