Granted Patent
Utility
US 6,675,878 · App. 10/314,676
Angled turbulator for use in heat exchangers
Inventors:
James T. Haasch, Wayne Mueller, Thomas Lefeber, Robert Barfknecht, Frank M. Grippe, Ajay Dalmia, Brian P. Gilner
Patented Case
View Patent ↗
Granted: Jan 13, 2004
Filed: Dec 9, 2002
Inventors
James T. Haasch
Wayne Mueller
Thomas Lefeber
Robert Barfknecht
Frank M. Grippe
Ajay Dalmia
Brian P. Gilner
Assignee (at issue)
MODINE MANUFACTURING COMPANY
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.