Granted Patent
Utility
US 6,673,447 · App. 10/053,068
Cationically charged coating on hydrophobic polymer fibers with poly (vinyl alcohol) assist
Inventors:
Ning Wei, Robert John Lyng, Monica Varriale
Patented Case
View Patent ↗
Granted: Jan 6, 2004
Filed: Jan 18, 2002
Inventors
Ning Wei
Robert John Lyng
Monica Varriale
Assignee (at issue)
Kimberly-Clark Worldwide, 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.