Granted Patent
Utility
US 6,028,406 · App. 09/214,450
Method for commutating a brushless motor and power supply for a brushless motor
Inventor:
Jens Birk
Patented Case
View Patent ↗
Granted: Feb 22, 2000
Filed: Dec 29, 1998
Inventor
Jens Birk
Assignee (at issue)
DANFOSS A/S
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.