Granted Patent
Utility
US 5,616,636 · App. 08/396,050
Phosphonite-hals and phosphite-hals compounds as stabilizers
Inventors:
Lajos Avar, Peter Staniek, Klaus Stoll, Wolf-Dieter Habicher, Uwe Hahner
Patented Case
View Patent ↗
Granted: Apr 1, 1997
Filed: Feb 27, 1995
Inventors
Lajos Avar
Peter Staniek
Klaus Stoll
Wolf-Dieter Habicher
Uwe Hahner
Assignee (at issue)
Sandoz AG
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.