Granted Patent
Utility
US 6,441,580 · App. 09/738,468
Brushless machine control
Inventor:
Joseph G. Marcinkiewicz
Patented Case
View Patent ↗
Granted: Aug 27, 2002
Filed: Dec 15, 2000
Inventor
Joseph G. Marcinkiewicz
Assignee (at issue)
Switched Reluctance Drives Limited
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.