Granted Patent
Utility
US 6,797,197 · App. 10/231,554
Modified amine for boiler water treatment
Inventors:
Lyle H. Steimel, James Emerson, Sue Ann Balow
Patented Case
View Patent ↗
Granted: Sep 28, 2004
Filed: Aug 30, 2002
Inventors
Lyle H. Steimel
James Emerson
Sue Ann Balow
Assignee (at issue)
JohnsonDiversey, 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.