Granted Patent
Utility
US 6,499,990 · App. 09/800,704
Low NOx burner apparatus and method
Inventors:
Darton J. Zink, Rex K. Isaacs, Tim Kirk, John McDonald
Patented Case
View Patent ↗
Granted: Dec 31, 2002
Filed: Mar 7, 2001
Inventors
Darton J. Zink
Rex K. Isaacs
Tim Kirk
John McDonald
Assignee (at issue)
ZEECO, INC.
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.