Granted Patent
Utility
US 6,313,225 · App. 09/152,585
Catalyst for olefin (co-)polymerization and method for producing the same
Inventors:
Jun Saito, Hideo Nobuhara, Hitoshi Sato
Patented Case
View Patent ↗
Granted: Nov 6, 2001
Filed: Sep 14, 1998
Inventors
Jun Saito
Hideo Nobuhara
Hitoshi Sato
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.