Granted Patent
Utility
US 6,335,607 · App. 09/647,095
Method of correcting flux midpoint in flux-controlled alternating current systems
Inventor:
Markku Niemelä
Patented Case
View Patent ↗
Granted: Jan 1, 2002
Filed: Sep 26, 2000
Inventor
Markku Niemelä
Assignee (at issue)
ABB Industry Oy
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.