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For the Inventor, By the Inventor

Allerød, Denmark

Welltec A/s


USPTO Granted Patents = 124



Trademarks = 9

Forward Citations = 330

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102 inventors (with patents filed for the assignee):

goldMedal Jørgen Hallundbæk (68 out of 73 patents)

silverMedal Paul Hazel (20 out of 35 patents)

bronzeMedal Tomas Sune Andersen (17 out of 20 patents)

4.  Christian Krüger (9 out of 12 patents)

5.  Jørgen Hallundbaek (8 out of 9 patents)

6.  Ricardo Reves Vasques (6 out of 34 patents)

7.  Jorgen Hallundbæk (6 out of 7 patents)

8.  Rasmus Sommer (6 out of 6 patents)

9.  Sven Karsten Jensen (5 out of 5 patents)

10.  Peter Gråbæk (4 out of 4 patents)

11.  Thomas Sune Andersen (4 out of 5 patents)

12.  Lars Stæhr (4 out of 10 patents)

13.  Jimmy Kjærsgaard-Rasmussen (3 out of 3 patents)

14.  Jens Barfoed (2 out of 2 patents)

15.  Satish Kumar (2 out of 10 patents)


Core Competencies:
Wireline Expansion Tool
Downhole Tool String
Hydraulically Driven Tool
Positive Displacement Pump
Zonal Isolation
Intervention System
Downhole Machining Tool
Wellbore Surveillance
Expandable Metal Tubular
Retrieval System
Fracturing Method
Downhole Cleaning Tool

124 patents:

1. 12435587 - Wireline expansion tool (2025-10-07),
2. 12428921 - Downhole wireline tool (2025-09-30),
3. 12312886 - Downhole tool string (2025-05-27),
4. 12129744 - Downhole pumping tool (2024-10-29),
5. 12129726 - Hydraulically driven downhole self-propelling wireline tool (2024-10-29),
6. 12116854 - Downhole self-propelling wireline tool (2024-10-15),
7. 12044084 - Hydraulically driven downhole self-propelling wireline tool string (2024-07-23),
8. 12037858 - Downhole positive displacement pump (2024-07-16),
9. 11994001 - Downhole method for separating well tubular structure (2024-05-28),
10. 11988057 - Downhole wireline tool string (2024-05-21),
11. 11982152 - Wireline plug system (2024-05-14),
12. 11859459 - Downhole tool (2024-01-02),
13. 11643897 - Downhole line separation tool (2023-05-09),
14. 11624256 - Downhole packer assembly (2023-04-11),
15. 11542810 - Downhole tool for determining laterals (2023-01-03),
Welltec is a global oil and gas technology company specializing in well intervention and well completion solutions. With a focus on customer success, Welltec develops innovative products and services that optimize well performance and increase production efficiency. The company offers a wide range of pioneering technologies including robotic conveyance, mechanical solutions, and milling and cleaning tools. Welltec operates in over 60 countries, delivering safe and efficient solutions to the oil and gas industry.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 9 2025

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124 Patents

#1 in Allerød

#32 in Denmark

#6,267 in the World

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Allerød, Denmark

Welltec A/s

Forward Citations = 330

102 inventors:

goldMedal Jørgen Hallundbæk (68 out of 73 patents)

silverMedal Paul Hazel (20 out of 35 patents)

bronzeMedal Tomas Sune Andersen (17 out of 20 patents)

4.  Christian Krüger (9 out of 12 patents)

5.  Jørgen Hallundbaek (8 out of 9 patents)

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