Granted Patent
Utility
US 5,159,541 · App. 07/786,221
Asymmetrical pulse width modulated resonant DC/DC converter
Inventor:
Praveen Jain
Patented Case
View Patent ↗
Granted: Oct 27, 1992
Filed: Oct 31, 1991
Inventor
Praveen Jain
Assignee (at issue)
Nortel Networks 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.