Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4621022 | Expandable plastics granular material having at least one orifice | Gunter Kohaut, Werner Weber, Herman Groenendijk, Adrianus C. Poppelaars | 1986-11-04 |
| 4599269 | Foamable plastics granules and packaging material prepared therefrom | Gunter Kohaut, Werner Weber, Herman Groenendijk, Adrianus C. Poppelaars | 1986-07-08 |