Granted Patent
Utility
US 6,597,148 · App. 09/913,348
Method for controlling an electrical machine and an inverter
Inventor:
Markku Niemelä
Patented Case
View Patent ↗
Granted: Jul 22, 2003
Filed: Sep 13, 2001
Inventor
Markku Niemelä
Assignee (at issue)
ABB Oy
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.