Granted Patent
Utility
US 5,940,285 · App. 08/908,798
Electrical circuit for converting electrical energy having capacitors and controller for maintaining a nominal charge on each capacitor
Inventors:
Philippe Carrere, Jean-Paul Lavieville, Thierry Meynard, Jean-Luc Thomas
Patented Case
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Granted: Aug 17, 1999
Filed: Aug 8, 1997
Inventors
Philippe Carrere
Jean-Paul Lavieville
Thierry Meynard
Jean-Luc Thomas
Assignee (at issue)
GEC Alsthom Transport SA
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.