Granted Patent
Utility
US 5,148,360 · App. 07/828,549
Fourth order damped lowpass filter for obtaining high power factor and low total harmonic distortion
Inventor:
Long Nguyen
Patented Case
View Patent ↗
Granted: Sep 15, 1992
Filed: Jan 29, 1992
Inventor
Long Nguyen
Assignee (at issue)
GTE Products Corporation
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.