Granted Patent
Utility
US 5,840,130 · App. 08/747,404
Cleaning of the water/steam circuit in a once-through forced-flow steam generator
Inventors:
Erhard Liebig, Christoph Ruchti
Patented Case
View Patent ↗
Granted: Nov 24, 1998
Filed: Nov 12, 1996
Inventors
Erhard Liebig
Christoph Ruchti
Assignee (at issue)
Asea Brown Boveri, S.A.
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.