Granted Patent
Utility
US 6,417,554 · App. 09/559,282
Latch free IGBT with schottky gate
Inventor:
Iftikhar Ahmed
Patented Case
View Patent ↗
Granted: Jul 9, 2002
Filed: Apr 27, 2000
Inventor
Iftikhar Ahmed
Assignee (at issue)
International Rectifier 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.