Granted Patent
Utility
US 6,538,082 · App. 09/729,099
Asymmetric silicon-bridged metallocenes useful as catalysts in the polymerization of &agr;-olefins, process for their preparation and use of said metallocenes for the polymerization of &agr;-olefins
Inventors:
Marvun D. Rausch, Emma J. Thomas, Serge Bettonville
Patented Case
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Granted: Mar 25, 2003
Filed: Dec 5, 2000
Inventors
Marvun D. Rausch
Emma J. Thomas
Serge Bettonville
Assignee (at issue)
Solvay Polyolefins Europe-Belgium (Societe Anonyme)
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.