Granted Patent
Utility
US 6,541,593 · App. 09/530,921
Process for the preparation of polyether oligomer containing reactive silicon group
Inventors:
Hideharu Jyono, Hidetoshi Odaka, Hiroshi Ando, Hiroshi Iwakiri, Hiroshi Ito, Fumio Kawakubo
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Jun 14, 2000
Inventors
Hideharu Jyono
Hidetoshi Odaka
Hiroshi Ando
Hiroshi Iwakiri
Hiroshi Ito
Fumio Kawakubo
Assignee (at issue)
KANEKA 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.