Granted Patent
Utility
US 6,798,262 · App. 10/410,226
Switching regulator control circuit for a PFM control
Inventor:
Wei Zhang
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: Apr 9, 2003
Inventor
Wei Zhang
Assignee (at issue)
SEIKO INSTRUMENTS 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.