Granted Patent
Utility
US 6,622,508 · App. 10/018,832
Method for heat and humidity exchange between two air streams and apparatus therefor
Inventors:
Paul A. Dinnage, Wolfgang Krause, Dietmar Muller
Patented Case
View Patent ↗
Granted: Sep 23, 2003
Filed: Mar 25, 2002
Inventors
Paul A. Dinnage
Wolfgang Krause
Dietmar Muller
Assignee (at issue)
MUNTERS EUROPE AB
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.