Granted Patent
Utility
US 6,646,859 · App. 10/246,725
Power supply arrangement
Inventors:
Olavi Vähämäki, Tero Talvitie, Kari Rautiainen, Lassi Toivonen
Patented Case
View Patent ↗
Granted: Nov 11, 2003
Filed: Sep 19, 2002
Inventors
Olavi Vähämäki
Tero Talvitie
Kari Rautiainen
Lassi Toivonen
Assignee (at issue)
ABB TECHNOLOGY AG
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.