Granted Patent
Utility
US 6,774,078 · App. 10/421,077
Olefin polymerization catalysts based on annulated cyclopentadienyl ligands
Inventors:
Sandor Nagy, Barbara M. Tsuie, Jonathan L. Schuchardt
Patented Case
View Patent ↗
Granted: Aug 10, 2004
Filed: Apr 23, 2003
Inventors
Sandor Nagy
Barbara M. Tsuie
Jonathan L. Schuchardt
Assignee (at issue)
Equistar Chemicals, LP
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.