Granted Patent
Utility
US 5,230,810 · App. 07/765,220
Corrosion control for wet oxidation systems
Inventors:
Mark A. Clark, David A. Beula
Patented Case
View Patent ↗
Granted: Jul 27, 1993
Filed: Sep 25, 1991
Inventors
Mark A. Clark
David A. Beula
Assignee (at issue)
Zimpro Passavant Environmental Systems, 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.