Granted Patent
Utility
US 6,464,900 · App. 09/630,673
Scale corrosion inhibiting composition
Inventors:
Pavol Kmec, Dwight E. Emerich
Patented Case
View Patent ↗
Granted: Oct 15, 2002
Filed: Aug 1, 2000
Inventors
Pavol Kmec
Dwight E. Emerich
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.