Granted Patent
Utility
US 5,223,775 · App. 07/783,298
Apparatus and related method to compensate for torque ripple in a permanent magnet electric motor
Inventor:
Peter Mongeau
Patented Case
View Patent ↗
Granted: Jun 29, 1993
Filed: Oct 28, 1991
Inventor
Peter Mongeau
Assignee (at issue)
EML Research, Inc.
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.