Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4986932 | Stabilizer system for polyolefins comprised of monocarboxylic acid esters of a piperidinol and a benzophenone or benzotriazole | Josef Disteldorf, Hans-Jurgen Haage, Peter Kirchner | 1991-01-22 |