Granted Patent
Utility
US 6,770,772 · App. 10/129,099
Transition metal compound, polymerization catalysts for olefin, olefin polymers and process for their production
Inventors:
Takashi Kashiwamura, Takuji Okamoto, Yutaka Minami
Patented Case
View Patent ↗
Granted: Aug 3, 2004
Filed: May 10, 2002
Inventors
Takashi Kashiwamura
Takuji Okamoto
Yutaka Minami
Assignee (at issue)
Idemitsu Petrochemical Co., 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.