Granted Patent
Utility
US 6,153,710 · App. 09/155,189
Preactivated catalyst for olefin (CO)polymer, catalyst for olefin (CO)polymerization, olefin (CO)polymer composition, and process for producing the same
Inventors:
Jun Saito, Shingo Kikukawa, Tsutomu Ushioda, Akiko Kageyama, Mototake Tsutsui
Patented Case
View Patent ↗
Granted: Nov 28, 2000
Filed: Sep 22, 1998
Inventors
Jun Saito
Shingo Kikukawa
Tsutomu Ushioda
Akiko Kageyama
Mototake Tsutsui
Assignee (at issue)
Chisso Corporation
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.