Granted Patent
Utility
US 6,184,402 · App. 09/509,645
Processes for the preparation of metallocene complexes
Inventors:
Hiroshi Yamazaki, Masato Nakano, Seiki Mitani, Jun Saito, Masato Harada, Mina Koyama
Patented Case
View Patent ↗
Granted: Feb 6, 2001
Filed: May 22, 2000
Inventors
Hiroshi Yamazaki
Masato Nakano
Seiki Mitani
Jun Saito
Masato Harada
Mina Koyama
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.