Granted Patent
Utility
US 6,636,405 · App. 09/977,640
Mitigation of 3rd harmonic currents in electrical power distribution systems
Inventor:
Michael Z. Lowenstein
Patented Case
View Patent ↗
Granted: Oct 21, 2003
Filed: Oct 11, 2001
Inventor
Michael Z. Lowenstein
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.