Granted Patent
Utility
US 6,426,561 · App. 09/394,717
Short-circuit-resistant IGBT module
Inventors:
Thomas G. Lang, Hans-Rudolf Zeller
Patented Case
View Patent ↗
Granted: Jul 30, 2002
Filed: Sep 13, 1999
Inventors
Thomas G. Lang
Hans-Rudolf Zeller
Assignee (at issue)
ABB Schweiz AG
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.