Granted Patent
Utility
US 5,234,672 · App. 07/867,171
Method and apparatus for increasing the separating capacity of a flue gas desulfurization apparatus
Inventor:
H. Ruscheweyh
Patented Case
View Patent ↗
Granted: Aug 10, 1993
Filed: Apr 10, 1992
Inventor
H. Ruscheweyh
Assignee (at issue)
Balcke-Durr GmbH
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.