Granted Patent
Utility
US 5,901,683 · App. 08/901,746
Indirect monitoring and control of visible exhaust emissions from a diesel engine
Inventor:
Sagar Arvindbhai Patel
Patented Case
View Patent ↗
Granted: May 11, 1999
Filed: Jul 28, 1997
Inventor
Sagar Arvindbhai Patel
Assignee (at issue)
General Electric Company
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.