Granted Patent
Utility
US 5,374,597 · App. 08/017,121
Vanadium based olefin polymerization catalyst
Inventors:
Chi-I Kuo, Michael W. Lynch
Patented Case
View Patent ↗
Granted: Dec 20, 1994
Filed: Feb 12, 1993
Inventors
Chi-I Kuo
Michael W. Lynch
Assignee (at issue)
Quantum Chemical Corporation
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.