Granted Patent
Utility
US 5,689,948 · App. 08/609,683
Method of operating a reheat power plant with steam injection
Inventor:
Hans Ulrich Frutschi
Patented Case
View Patent ↗
Granted: Nov 25, 1997
Filed: Mar 1, 1996
Inventor
Hans Ulrich Frutschi
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.