Granted Patent
Utility
US 6,734,640 · App. 10/193,955
System and method for electronic ballast design
Inventors:
Thomas Ribarich, Peter Green
Patented Case
View Patent ↗
Granted: May 11, 2004
Filed: Jul 11, 2002
Inventors
Thomas Ribarich
Peter Green
Assignee (at issue)
International Rectifier 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.