Granted Patent
Utility
US 5,153,158 · App. 07/634,737
Solid catalyst components for olefin polymerization and processes for the polymerization of olefin using same
Inventors:
Mamoru Kioka, Masao Nakano, Takashi Ueda
Patented Case
View Patent ↗
Granted: Oct 6, 1992
Filed: Dec 27, 1990
Inventors
Mamoru Kioka
Masao Nakano
Takashi Ueda
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.