Granted Patent
Utility
US 6,557,535 · App. 09/851,631
System and method for transferring heat from exhaust gasses to compressed gas fuel
Inventor:
Kevin T. Stone
Patented Case
View Patent ↗
Granted: May 6, 2003
Filed: May 8, 2001
Inventor
Kevin T. Stone
Assignee (at issue)
ISE Research Corporation
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.