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Leiden, Netherlands

Heerema Marine Contractors Nederland B.v.

USPTO Granted Patents = 16

CIPO Patents = 4

Forward Citations = 85

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27 inventors (with patents filed for the assignee):

Cornelis Van Zandwijk (6 out of 11 patents)

Gerardus Cornelius Van Grieken (2 out of 8 patents)

Maikel Hillenaar (2 out of 4 patents)

4. Frits-Jan Koppert (2 out of 2 patents)

5. Tom Laurent Hubert Frijns (2 out of 2 patents)

6. Thomas Balder (1 out of 2 patents)

7. Stefan Willem Hees (1 out of 2 patents)

8. Cornelis Benard (1 out of 2 patents)

9. Ton Coppens (1 out of 2 patents)

10. Eugene Alexander Bajema (1 out of 1 patent)

11. Walter Petrus Johannes Wassenaar (1 out of 1 patent)

12. Berend Martijn Bouwman (1 out of 1 patent)

13. Robert Reinder Narold (1 out of 1 patent)

14. Coen Maarten Spanjers (1 out of 1 patent)

15. Dirk Rients Wolbers (1 out of 1 patent)

16 patents: Sort by Forward Citations

1. 8919737 - Traction device and method for paying out and retrieving a flexible line (2014-12-30),

2. 8500366 - Pipeline guide assemblies (2013-08-06),

3. 8469633 - Vessel with abandoning and recovering system for pipelines, method, and use of said vessel and system (2013-06-25),

4. 8469632 - Vessel for laying a pipeline and comprising an A and R means (2013-06-25),

5. 8465024 - Sealing device configured to form an air seal around a pipe (2013-06-18),

6. 8251613 - Pipeline laying vessel and method of laying a pipeline (2012-08-28),

7. 8123437 - Pipeline assembly comprising an anchoring device (2012-02-28),

8. 7815093 - Guiding device (2010-10-19),

9. 7735709 - Apparatus and method for joining pipe ends together (2010-06-15),

10. 7713000 - Method and device for positioning ends of pipe sections relative to one another (2010-05-11),

11. 7399143 - Method for making a channel in the ground, excavating device for making a channel in the ground, assembly comprising an excavating device and a construction element (2008-07-15),

12. 7360968 - Method and device for anchoring a pipeline (2008-04-22),

13. 7182550 - Abandonment and recovery head apparatus (2007-02-27),

14. 6592297 - Underwater pipe laying method and apparatus (2003-07-15),

15. 6511261 - Method of removing or positioning a substructure of an offshore platform (2003-01-28),

Heerema Marine Contractors Nederland B.V. is a leading offshore engineering and construction company. They specialize in transporting, installing, and removing all types of fixed and floating offshore structures, including oil and gas platforms, wind farms, and subsea pipelines. With over 50 years of experience, Heerema Marine Contractors is known for their reliable and innovative approach to complex projects in the oil, gas, and renewable energy industries.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

16 Patents

#12 in Leiden

#427 in Netherlands

#36,655 in the World

Leiden, Netherlands

Heerema Marine Contractors Nederland B.v.

Forward Citations = 85

27 inventors:

Cornelis Van Zandwijk (6 out of 11 patents)

Gerardus Cornelius Van Grieken (2 out of 8 patents)

Maikel Hillenaar (2 out of 4 patents)

4. Frits-Jan Koppert (2 out of 2 patents)

5. Tom Laurent Hubert Frijns (2 out of 2 patents)

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