Granted Patent
Utility
US 5,378,443 · App. 07/808,461
Method for reducing emissions when burning nitrogen containing fuels
Inventors:
Folke Engstrom, Mikko Hupa, Ragnar G. Lundqvist, Yam Y. Lee
Patented Case
View Patent ↗
Granted: Jan 3, 1995
Filed: Jan 3, 1992
Inventors
Folke Engstrom
Mikko Hupa
Ragnar G. Lundqvist
Yam Y. Lee
Assignee (at issue)
A. Ahlstrom 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.