Granted Patent
Utility
US 6,498,447 · App. 09/930,926
Apparatus and method for controlling an electric machine
Inventors:
Raymond A. Mann, Austin Hughes, John M. Stephenson
Patented Case
View Patent ↗
Granted: Dec 24, 2002
Filed: Aug 16, 2001
Inventors
Raymond A. Mann
Austin Hughes
John M. Stephenson
Assignee (at issue)
Switched Reluctance Drives Limited
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.