Granted Patent
Utility
US 6,166,124 · App. 09/180,049
Cationic laminar compounds and their production and use as stabilizers for halogen containing plastics
Inventors:
Ilona Lange, Joerg-Dieter Klamann, Juergen Foell, Peter Wedl, Dieter Marks
Patented Case
View Patent ↗
Granted: Dec 26, 2000
Filed: Feb 4, 1999
Inventors
Ilona Lange
Joerg-Dieter Klamann
Juergen Foell
Peter Wedl
Dieter Marks
Assignee (at issue)
Cognis Deutschland GmbH
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.