Granted Patent
Utility
US 4,845,940 · App. 07/117,369
Low NOx rich-lean combustor especially useful in gas turbines
Inventor:
Janos M. Beer
Patented Case
View Patent ↗
Granted: Jul 11, 1989
Filed: Oct 28, 1987
Inventor
Janos M. Beer
Assignee (at issue)
Westinghouse Electric Company LLC
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.