Granted Patent
Utility
US 5,660,874 · App. 08/601,082
Method of protecting steel water handling facilities from corrosion
Inventors:
Anthony R. Pitochelli, Lawrence M. Cenegy, James D. Watson, John G. Garcia, Jr.
Patented Case
View Patent ↗
Granted: Aug 26, 1997
Filed: Feb 14, 1996
Inventors
Anthony R. Pitochelli
Lawrence M. Cenegy
James D. Watson
John G. Garcia, Jr.
Assignee (at issue)
Nalco/Exxon Energy Chemicals, L.P.
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.