Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6103163 | Processes and apparatuses for perforating smooth, closed-cell surfaces of open-cell plastic foam sheets | Henk Joppen, Paul William Daniels | 2000-08-15 |
| 5720915 | Processes and apparatuses for perforating smooth, closed-cell surfaces of open-cell plastic foam sheets | Henk Joppen, Paul William Daniels | 1998-02-24 |