Granted Patent
Utility
US 4,868,477 · App. 07/065,399
Method and apparatus for controlling torque and torque ripple in a variable reluctance motor
Inventors:
Frank J. Anderson, Peter Senak, Jr.
Patented Case
View Patent ↗
Granted: Sep 19, 1989
Filed: Jun 23, 1987
Inventors
Frank J. Anderson
Peter Senak, Jr.
Assignee (at issue)
Superior Electron, LLC
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.