Granted Patent
Utility
US 4,685,040 · App. 06/805,651
Integrated circuit for controlling power converter by frequency modulation and pulse width modulation
Inventors:
Robert Louis Steigerwald, Keku M. Mistry
Patented Case
View Patent ↗
Granted: Aug 4, 1987
Filed: Dec 6, 1985
Inventors
Robert Louis Steigerwald
Keku M. Mistry
Assignee (at issue)
General Electric 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.