Granted Patent
Utility
US 5,194,143 · App. 07/793,754
Method for inhibiting fouling in caustic scrubber systems
Inventor:
Paul V. Roling
Patented Case
View Patent ↗
Granted: Mar 16, 1993
Filed: Nov 18, 1991
Inventor
Paul V. Roling
Assignee (at issue)
Betz Laboratories, Inc.
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.