Granted Patent
Utility
US 5,569,990 · App. 08/414,289
Detection of starting motor position in a brushless DC motor
Inventor:
John C. Dunfield
Patented Case
View Patent ↗
Granted: Oct 29, 1996
Filed: Mar 31, 1995
Inventor
John C. Dunfield
Assignee (at issue)
Seagate Technology LLC
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.