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For the Inventor, By the Inventor

Schiedam, Netherlands

Itrec B.v.


USPTO Granted Patents = 236

% Expired Patents = 19.1


Trademarks = 2

Forward Citations = 849

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84 inventors (with patents filed for the assignee):

goldMedal Joop Roodenburg (203 out of 220 patents)

silverMedal Diederick Bernardus Wijning (91 out of 91 patents)

bronzeMedal Terence Willem August Vehmeijer (49 out of 49 patents)

4.  Pieter Dirk Melis Van Duivendijk (24 out of 25 patents)

5.  Ronny Lambertus Waltherus Nouwens (19 out of 19 patents)

6.  Hendrikus Jacobus Weterings (13 out of 13 patents)

7.  Cornelis Martinus Van Veluw (12 out of 12 patents)

8.  Anne Klaas De Groot (10 out of 10 patents)

9.  Arnoud Laurens Feijen (8 out of 8 patents)

10.  Hendrik Hessels (7 out of 7 patents)

11.  Eric Romeijn (7 out of 7 patents)

12.  Robert Frodo Van Kuilenburg (7 out of 7 patents)

13.  Arthur Alexander De Mul (6 out of 6 patents)

14.  Wouter Johannes Slob (6 out of 6 patents)

15.  Theodorus Cornelis Joanes Maria Stijnman (6 out of 6 patents)


Core Competencies:
Offshore Installation
Wind Turbine Assembly
Crane Systems
Pile Installation
Marine Vessels
Drilling Rigs
Subsea Operations
Heavy Lift Cranes
Motion Compensation
Wellbore Drilling
Adjustable Pile Holding
Marine Pipelay

236 patents:

1. 12687154 - Offshore wind turbine assembly vessel (2026-07-21),
2. 12674293 - Heave tolerant pile guiding device for guiding a pile during installation thereof (2026-07-07),
3. 12637334 - Marine crane and offshore vessel (2026-05-26),
4. 12612754 - Pile installation (2026-04-28),
5. 12595635 - Offshore pile installation method and system (2026-04-07),
6. 12529198 - Recirculating cylindrical rollers assembly for supporting an object on a rail, e.g. in a pile holding system (2026-01-20),
7. 12515924 - Heavy lift crane (2026-01-06),
8. 12503344 - Offshore wind turbine assembly vessel (2025-12-23),
9. 12473180 - Crane housing, crane, jack-up vessel, method (2025-11-18),
10. 12378099 - Heave compensated dual hoist crane (2025-08-05),
11. 12372189 - Tubular with screw thread (2025-07-29),
12. 12338789 - Installation of a rotor blade in horizontal orientation to the hub of a horizontal axis offshore wind turbine that is located offshore (2025-06-24),
13. 12338695 - Mobile land rig with a pivotal top drive unit (2025-06-24),
14. 12338106 - Marine knuckle boom crane (2025-06-24),
15. 12331719 - Installation of a wind turbine on a floating foundation (2025-06-17),
ITREC B.V. is a leading technology company specializing in providing innovative IT solutions to businesses. With our robust team of skilled IT professionals and deep industry knowledge, we offer customized software development, web design, cloud computing, and cybersecurity services. We strive to deliver cutting-edge solutions that enhance operational efficiency and drive growth for our clients. Visit our website to learn more about our services.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 15 2026

236 Patents

#1 in Schiedam

#32 in Netherlands

#3,632 in the World

Schiedam, NL
Schiedam, Netherlands

Itrec B.v.

Forward Citations = 849

84 inventors:

goldMedal Joop Roodenburg (203 out of 220 patents)

silverMedal Diederick Bernardus Wijning (91 out of 91 patents)

bronzeMedal Terence Willem August Vehmeijer (49 out of 49 patents)

4.  Pieter Dirk Melis Van Duivendijk (24 out of 25 patents)

5.  Ronny Lambertus Waltherus Nouwens (19 out of 19 patents)

Please report any incorrect information to [email protected]
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