Granted Patent
Utility
US 5,838,181 · App. 08/642,562
Pulse-width modulator circuit for use in low-cost power factor correction circuit
Inventor:
Bryce L. Hesterman
Patented Case
View Patent ↗
Granted: Nov 17, 1998
Filed: May 3, 1996
Inventor
Bryce L. Hesterman
Assignee (at issue)
Magnetek, 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.