Granted Patent
Utility
US 5,465,690 · App. 08/226,483
Method of purifying gases containing nitrogen oxides and an apparatus for purifying gases in a steam generation boiler
Inventors:
Charles Viel Lamare, Matti Hiltunen, Yam Y. Lee
Patented Case
View Patent ↗
Granted: Nov 14, 1995
Filed: Apr 12, 1994
Inventors
Charles Viel Lamare
Matti Hiltunen
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.