Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5484649 | Process for foaming flame retardant polystyrene and polystyrene shaped articles | Hub A. G. Vonken | 1996-01-16 |
| 5470888 | Process for foaming flame retardant polystyrene and polystyrene shaped articles | Hub A. G. Vonken | 1995-11-28 |