Granted Patent
Utility
US 6,386,149 · App. 09/309,527
Method of operating an engine with a mixture of gaseous fuel and emulsified pilot fuel to reduce nitrogen oxide emissions
Inventors:
Gerald N. Coleman, Richard A. Cemenska, Martin L. Willi, Ted W. Sheuermann
Patented Case
View Patent ↗
Granted: May 14, 2002
Filed: May 11, 1999
Inventors
Gerald N. Coleman
Richard A. Cemenska
Martin L. Willi
Ted W. Sheuermann
Assignee (at issue)
Clean Fuels Technology, 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.