| 10399830 |
Hoisting crane and method for refurbishing such a hoisting crane |
Joop Roodenburg |
2019-09-03 |
| 8240954 |
Marine pipeline installation system and methods |
Joop Roodenburg, Diederick Bernardus Wijning, Terence Willem August Vehmeijer |
2012-08-14 |
| 8056492 |
Vessel comprising a subsea equipment motion restraining and guidance system |
Joop Roodenburg, Pieter Dirk Melis Van Duivendijk |
2011-11-15 |
| 7955028 |
Marine pipelaying system and method for installing an offshore pipeline that includes one or more accessories |
Joop Roodenburg, Diederick Bernardus Wijning |
2011-06-07 |
| 7938598 |
Marine pipeline installation system and methods |
Joop Roodenburg, Diederick Bernardus Wijning, Terence Willem August Vehmeijer |
2011-05-10 |
| 7878735 |
Marine pipelay system and method |
Joop Roodenburg, Pieter Dirk Melis van Duivenduk |
2011-02-01 |
| 7255515 |
Marine pipelay system and method |
Joop Roodenburg, Pieter Dirk Melis Van Duivendijk |
2007-08-14 |
| 7226244 |
System for overload protection for pipe or cable laying structures |
Joop Roodenburg |
2007-06-05 |
| 6926103 |
Splittable block on a derrick |
Joop Roodenburg |
2005-08-09 |
| 6926260 |
Compensation and hoisting apparatus |
Joop Roodenburg, Robert van Kuilenburg |
2005-08-09 |
| 6592297 |
Underwater pipe laying method and apparatus |
Tom Laurent Hubert Frijns |
2003-07-15 |
| 6439445 |
Tensioner |
Piet Kalkman |
2002-08-27 |
| 5823712 |
Method and installation for laying a pipeline on a surface located under water |
Piet Kalkman, Joop Roodenburg |
1998-10-20 |