Granted Patent
Utility
US 6,337,047 · App. 09/183,428
Process for dispersing iron oxide in steam generating boilers
Inventors:
Kostan Charkhutian, Bruce L. Libutti, Kaj D. Rondum
Patented Case
View Patent ↗
Granted: Jan 8, 2002
Filed: Oct 30, 1998
Inventors
Kostan Charkhutian
Bruce L. Libutti
Kaj D. Rondum
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.