Granted Patent
Utility
US 6,593,751 · App. 09/866,645
Motor insulation fault detection by sensing ground leak current
Inventor:
Toshio Takahashi
Patented Case
View Patent ↗
Granted: Jul 15, 2003
Filed: May 30, 2001
Inventor
Toshio Takahashi
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.