Granted Patent
Utility
US 6,504,338 · App. 09/904,428
Constant CFM control algorithm for an air moving system utilizing a centrifugal blower driven by an induction motor
Inventor:
Ronald L. Eichorn
Patented Case
View Patent ↗
Granted: Jan 7, 2003
Filed: Jul 12, 2001
Inventor
Ronald L. Eichorn
Assignee (at issue)
Varidigm Corporation
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.