Granted Patent
Utility
US 6,151,226 · App. 09/305,637
Four quadrant power conversion topology
Inventors:
William Chen, Edwin Glenn Yancey, Mahlon D. Kimbrough
Patented Case
View Patent ↗
Granted: Nov 21, 2000
Filed: May 5, 1999
Inventors
William Chen
Edwin Glenn Yancey
Mahlon D. Kimbrough
Assignee (at issue)
Marconi Communications GmbH
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.