Granted Patent
Utility
US 5,843,299 · App. 08/920,278
Corrosion inhibitor for alkanolamine units
Inventors:
Ljiljana V. Minevski, Ann L. Lambousy
Patented Case
View Patent ↗
Granted: Dec 1, 1998
Filed: Aug 22, 1997
Inventors
Ljiljana V. Minevski
Ann L. Lambousy
Assignee (at issue)
Betzdearborn, 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.