Granted Patent
Utility
US 6,783,806 · App. 10/240,482
Silicone compositions for treating wool materials
Inventors:
Simpert Ludemann, Jürgen Riedmann, Harald Chrobaczek, Theodor Angele, Lee Howarth
Patented Case
View Patent ↗
Granted: Aug 31, 2004
Filed: Oct 2, 2002
Inventors
Simpert Ludemann
Jürgen Riedmann
Harald Chrobaczek
Theodor Angele
Lee Howarth
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.