Granted Patent
Utility
US 5,680,764 · App. 08/477,114
Clean air engines transportation and other power applications
Inventor:
Fermin Viteri
Patented Case
View Patent ↗
Granted: Oct 28, 1997
Filed: Jun 7, 1995
Inventor
Fermin Viteri
Assignee (at issue)
Clean Energy Systems, 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.