Granted Patent
Utility
US 4,988,285 · App. 07/394,036
Reduced No.sub.x combustion method
Inventor:
Mark A. Delano
Patented Case
View Patent ↗
Granted: Jan 29, 1991
Filed: Aug 15, 1989
Inventor
Mark A. Delano
Assignee (at issue)
Union Carbide 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.