Granted Patent
Utility
US 6,204,215 · App. 09/200,851
Solid catalyst component for olefin polymerization, catalyst for olefin polymerization, and method for producing olefin polymers
Inventors:
Yasunori Kadoi, Tsuyoshi Ota, Toshio Isozaki, Kiyokazu Katayama, Takanori Sadashima
Patented Case
View Patent ↗
Granted: Mar 20, 2001
Filed: Nov 30, 1998
Inventors
Yasunori Kadoi
Tsuyoshi Ota
Toshio Isozaki
Kiyokazu Katayama
Takanori Sadashima
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.