Granted Patent
Utility
US 5,773,537 · App. 08/579,890
Ziegler-natta catalyst systems containing specific organosilicon compounds
Inventors:
Patrik Mueller, Klaus-Dieter Hungenberg, Juergen Kerth, Ralf Zolk
Patented Case
View Patent ↗
Granted: Jun 30, 1998
Filed: Dec 28, 1995
Inventors
Patrik Mueller
Klaus-Dieter Hungenberg
Juergen Kerth
Ralf Zolk
Assignee (at issue)
BASF SE
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.