Granted Patent
Utility
US 6,825,641 · App. 10/349,298
High efficiency electrical switch and DC-DC converter incorporating same
Inventor:
John M. Pigott
Patented Case
View Patent ↗
Granted: Nov 30, 2004
Filed: Jan 22, 2003
Inventor
John M. Pigott
Assignee (at issue)
Freeescale Semiconductor, Inc.
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.