Granted Patent
Utility
US 5,225,746 · App. 07/805,154
Apparatus and method for controlling brushless electric motors
Inventors:
Johann von der Heide, Michael Hermann, Uwe Mueller
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: Dec 11, 1991
Inventors
Johann von der Heide
Michael Hermann
Uwe Mueller
Assignee (at issue)
Papst Motoren GmbH & Co KG
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.