Granted Patent
Utility
US 6,555,084 · App. 09/802,927
Method of decomposing ammonia gas
Inventor:
Yasuo Ohtsuka
Patented Case
View Patent ↗
Granted: Apr 29, 2003
Filed: Mar 12, 2001
Inventor
Yasuo Ohtsuka
Assignee (at issue)
President of Tohoku University
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.