Granted Patent
Utility
US 5,287,372 · App. 07/873,464
Quasi-resonant diode drive current source
Inventor:
Joe A. Ortiz
Patented Case
View Patent ↗
Granted: Feb 15, 1994
Filed: Apr 24, 1992
Inventor
Joe A. Ortiz
Assignee (at issue)
Hughes Aircraft Company
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.