Granted Patent
Utility
US 6,156,129 · App. 09/153,645
Liquid metal cleaner for aqueous system
Inventors:
Linda M. Hlivka, Joseph Mihelic, Bruce L. Libutti
Patented Case
View Patent ↗
Granted: Dec 5, 2000
Filed: Aug 17, 1998
Inventors
Linda M. Hlivka
Joseph Mihelic
Bruce L. Libutti
Assignee (at issue)
Ashland, 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.