Granted Patent
Utility
US 6,176,436 · App. 09/351,974
Method and apparatus for energy recovery in an environmental control system
Inventors:
Dale A. Gauthier, Guy D. Covert
Patented Case
View Patent ↗
Granted: Jan 23, 2001
Filed: Jul 12, 1999
Inventors
Dale A. Gauthier
Guy D. Covert
Assignee (at issue)
Pentech Energy Solutions, 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.