Granted Patent
Utility
US 6,427,636 · App. 10/067,307
Method and plant for heating a liquid medium
Inventor:
Erhard Liebig
Patented Case
View Patent ↗
Granted: Aug 6, 2002
Filed: Feb 7, 2002
Inventor
Erhard Liebig
Assignee (at issue)
ALSTOM (Switzerland) Ltd
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.