Granted Patent
Utility
US 6,366,049 · App. 09/567,592
Motor starter and speed controller system
Inventors:
Li Chen, Richard J. Hampo, Yifan Zhao
Patented Case
View Patent ↗
Granted: Apr 2, 2002
Filed: May 10, 2000
Inventors
Li Chen
Richard J. Hampo
Yifan Zhao
Assignee (at issue)
Ecostar Electric Drive Systems L.L.C.
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.