Granted Patent
Utility
US 6,669,853 · App. 09/927,844
Composition for removing dissolved oxygen from a fluid
Inventors:
Kostan Charkhutian, Bruce L. Libutti, Frank L. M. De Cordt, Martti Samuli Ahomäki
Patented Case
View Patent ↗
Granted: Dec 30, 2003
Filed: Aug 9, 2001
Inventors
Kostan Charkhutian
Bruce L. Libutti
Frank L. M. De Cordt
Martti Samuli Ahomäki
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.