Issued Patents 2017
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9796458 | Offshore drilling vessel | Joop Roodenburg | 2017-10-24 |
| 9752395 | Wellbore drilling system | Joop Roodenburg, Hendrik Hessels | 2017-09-05 |
| 9732565 | Method for riser string handling and an offshore drilling vessel | Joop Roodenburg | 2017-08-15 |
| 9586654 | Monohull offshore drilling vessel | Joop Roodenburg | 2017-03-07 |
| 9587447 | Drilling vessel | Joop Roodenburg, Pieter Dirk Melis Van Duivendijk | 2017-03-07 |