Granted Patent
Utility
US 6,194,861 · App. 09/330,617
Circuit and method for sensorless brushless direct current (BLDC) motor
Inventor:
Seok-Hoon Bang
Patented Case
View Patent ↗
Granted: Feb 27, 2001
Filed: Jun 11, 1999
Inventor
Seok-Hoon Bang
Assignee (at issue)
Fairchild Korea Semiconductor Ltd.
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.