Granted Patent
Utility
US 6,803,407 · App. 10/221,614
Polyorganosiloxanes having alkoxylated side chains
Inventors:
Harald Chrobaczek, Franz Dirschl, Ralf Goretzki, Gunther Tschida
Patented Case
View Patent ↗
Granted: Oct 12, 2004
Filed: Sep 13, 2002
Inventors
Harald Chrobaczek
Franz Dirschl
Ralf Goretzki
Gunther Tschida
Assignee (at issue)
Ciba Specialty Chemicals 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.