Granted Patent
Utility
US 6,778,373 · App. 10/070,887
Rectifier circuit suited to power factor correction
Inventors:
Ugo Francescutti, Felix Franck
Patented Case
View Patent ↗
Granted: Aug 17, 2004
Filed: Mar 7, 2002
Inventors
Ugo Francescutti
Felix Franck
Assignee (at issue)
Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
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.