Granted Patent
Utility
US 5,120,452 · App. 07/558,713
Process for purifying wastewater with hypochlorous acid
Inventors:
Richard C. Ness, Budd L. Duncan, Sudhir K. Mendiratta, Donald R. Leonard
Patented Case
View Patent ↗
Granted: Jun 9, 1992
Filed: Jul 26, 1990
Inventors
Richard C. Ness
Budd L. Duncan
Sudhir K. Mendiratta
Donald R. Leonard
Assignee (at issue)
Olin Corporation
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.