Granted Patent
Utility
US 5,627,117 · App. 08/364,477
Olefin polymerization catalyst and process for olefin polymerization
Inventors:
Teruaki Mukaiyama, Makoto Mitani, Kunihiro Oouchi
Patented Case
View Patent ↗
Granted: May 6, 1997
Filed: Dec 27, 1994
Inventors
Teruaki Mukaiyama
Makoto Mitani
Kunihiro Oouchi
Assignee (at issue)
Mitsui Petrochemical Industries, Ltd.
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.