Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10677318 | Gearbox for a dredging vessel | Cornelis Pieter Raimond, Johannes Martijn Vreugdenhil, Leendert Johannes Adriaan den Boer | 2020-06-09 |
| 8661998 | Rudder and ship-like object having such a rudder | Pieter Van Oossanen | 2014-03-04 |
| 4411079 | Suction drag system | — | 1983-10-25 |
| 4407420 | Ship comprising one or more derricks such as a dredge with suction pipe derricks | — | 1983-10-04 |