Granted Patent
Utility
US 6,771,056 · App. 10/284,018
AC controller with reverse blocking IGBT
Inventor:
Andreas Lindemann
Patented Case
View Patent ↗
Granted: Aug 3, 2004
Filed: Oct 29, 2002
Inventor
Andreas Lindemann
Assignee (at issue)
IXYS, LLC
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.