Granted Patent
Utility
US 5,757,100 · App. 08/699,516
Method & apparatus for reducing cogging torque in an electric motor
Inventor:
Martin Burgbacher
Patented Case
View Patent ↗
Granted: May 26, 1998
Filed: Aug 21, 1996
Inventor
Martin Burgbacher
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.