Granted Patent
Utility
US 5,594,636 · App. 08/267,730
Matrix converter circuit and commutating method
Inventor:
Colin D. Schauder
Patented Case
View Patent ↗
Granted: Jan 14, 1997
Filed: Jun 29, 1994
Inventor
Colin D. Schauder
Assignee (at issue)
NORTHROP GRUMMAN CORPORATION
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.