Granted Patent
Utility
US 6,262,289 · App. 09/445,417
Process for preparing cyclic oligosiloxanes
Inventor:
Katsuya Ouchi
Patented Case
View Patent ↗
Granted: Jul 17, 2001
Filed: Dec 8, 1999
Inventor
Katsuya Ouchi
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.