Granted Patent
Utility
US 6,439,468 · App. 09/909,117
Acoustic HVAC control system
Inventors:
David K. Lambert, Dale L. Partin, Taeyoung Han, Michel F. Sultan
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: Jul 19, 2001
Inventors
David K. Lambert
Dale L. Partin
Taeyoung Han
Michel F. Sultan
Assignee (at issue)
Delphi Technologies
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.