Granted Patent
Utility
US 4,916,099 · App. 07/237,324
Solid catalyst component for olefin copolymerization and process for olefin copolymerization using said solid catalyst component
Inventors:
Toshio Sasaki, Yoshihiro Miyoshi, Takeshi Ebara, Kiyoshi Kawai
Patented Case
View Patent ↗
Granted: Apr 10, 1990
Filed: Aug 29, 1988
Inventors
Toshio Sasaki
Yoshihiro Miyoshi
Takeshi Ebara
Kiyoshi Kawai
Assignee (at issue)
SUMITOMO CHEMICAL COMPANY, LIMITED
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.