Granted Patent
Utility
US 6,265,724 · App. 09/632,782
Galvanic isolation coupling of current loop
Inventor:
Erkki Miettinen
Patented Case
View Patent ↗
Granted: Jul 24, 2001
Filed: Aug 4, 2000
Inventor
Erkki Miettinen
Assignee (at issue)
ABB Industries 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.