Granted Patent
Utility
US 6,163,121 · App. 09/405,633
Torque maximization and vibration control for AC locomotives
Inventors:
Ajith Kuttannair Kumar, Edgar T. Balch
Patented Case
View Patent ↗
Granted: Dec 19, 2000
Filed: Sep 24, 1999
Inventors
Ajith Kuttannair Kumar
Edgar T. Balch
Assignee (at issue)
General Electric Company
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.