Granted Patent
Utility
US 6,639,378 · App. 09/992,866
Current chopping in switched reluctance drive systems
Inventors:
Michael James Turner, Charles Richard Elliott
Patented Case
View Patent ↗
Granted: Oct 28, 2003
Filed: Nov 19, 2001
Inventors
Michael James Turner
Charles Richard Elliott
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.