Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5541244 | Polymer mixture and articles formed therefrom | Roelof van der Meer, Constantinus L. J. A. Verbraak, Johannes van Helmond, Hendrikus H. T. M. Ketels | 1996-07-30 |
| 5496880 | Polymer mixtures and articles formed therefrom | Johannes van Helmond, Hendrikus H. T. M. Ketels | 1996-03-05 |