Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4330016 | Pipe part provided with a flange | — | 1982-05-18 |
| 4217935 | Fiber reinforced plastic pipe part | Mattheus J. Poiesz, Leo A. A. van der Kemp | 1980-08-19 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4330016 | Pipe part provided with a flange | — | 1982-05-18 |
| 4217935 | Fiber reinforced plastic pipe part | Mattheus J. Poiesz, Leo A. A. van der Kemp | 1980-08-19 |