Granted Patent
Utility
US 6,767,390 · App. 10/178,989
Energy efficient desiccant dryer regeneration system
Inventors:
John Battershell, Charles Impastato, Alfredo R. Longo
Patented Case
View Patent ↗
Granted: Jul 27, 2004
Filed: Jun 25, 2002
Inventors
John Battershell
Charles Impastato
Alfredo R. Longo
Assignee (at issue)
Cooper Turbocompressor, 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.