Granted Patent
Utility
US 5,805,437 · App. 08/831,496
Power electronic circuit arrangement having plural power converters
Inventor:
Horst Gruning
Patented Case
View Patent ↗
Granted: Sep 8, 1998
Filed: Mar 31, 1997
Inventor
Horst Gruning
Assignee (at issue)
Asea Brown Boveri, S.A.
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.