Granted Patent
Utility
US 6,148,744 · App. 09/401,357
Coal firing furnace and method of operating a coal-fired furnace
Inventors:
Paul J. Chapman, John F. Drennen, Michael Kaplan, Majed Toqan
Patented Case
View Patent ↗
Granted: Nov 21, 2000
Filed: Sep 21, 1999
Inventors
Paul J. Chapman
John F. Drennen
Michael Kaplan
Majed Toqan
Assignee (at issue)
ABB Alstom Power 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.