Granted Patent
Utility
US 6,449,947 · App. 09/981,171
Low pressure injection and turbulent mixing in selective catalytic reduction system
Inventors:
Z. Gerald Liu, Barry M. Verdegan
Patented Case
View Patent ↗
Granted: Sep 17, 2002
Filed: Oct 17, 2001
Inventors
Z. Gerald Liu
Barry M. Verdegan
Assignee (at issue)
Fleetguard, 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.