Issued Patents 2004
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6763898 | Dual hoist system | Adriaan Jan Roodenburg, Johannes Jozef Zwetsloot | 2004-07-20 |
| 6729804 | Cantilevered tower for jack-up platform | Robert van Kuilenburg, Pieter Dirk Melis Van Duivendijk | 2004-05-04 |
| 6688248 | Submersible catamaran | — | 2004-02-10 |