Granted Patent
Utility
US 5,923,152 · App. 08/803,464
Power factor correction circuit with soft switched boost converter
Inventor:
Nunzio Guerrera
Patented Case
View Patent ↗
Granted: Jul 13, 1999
Filed: Feb 20, 1997
Inventor
Nunzio Guerrera
Assignee (at issue)
Astec International Limited
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.