Granted Patent
Utility
US 6,451,726 · App. 09/509,657
Pre-polymerized catalyst components for the polymerization of olefins
Inventors:
Licio Zambon, Mario Sacchetti, Gianni Vitale
Patented Case
View Patent ↗
Granted: Sep 17, 2002
Filed: Mar 30, 2000
Inventors
Licio Zambon
Mario Sacchetti
Gianni Vitale
Assignee (at issue)
Basell Poliolefine Italia S.r.l.
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.