Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848968 | Stabilization system | — | 1989-07-18 |
| 4824291 | Offshore tower structures | — | 1989-04-25 |
| 4744697 | Installation and removal vessel | — | 1988-05-17 |
| RE32578 | Mooring system | Leendert Poldervaart | 1988-01-12 |
| 4533332 | Mooring system | Leendert Poldervaart | 1985-08-06 |
| 4490121 | Mooring system | Leendert Poldervaart | 1984-12-25 |