For the Inventor, By the Inventor

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Straume, Norway

Enhanced Drilling A.s.

USPTO Granted Patents = 16

% Expired Patents = 25.0

CIPO Patents = 3

EPO Patents = 9

Trademarks = 3

Forward Citations = 27

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11 inventors (with patents filed for the assignee):

Per Christian Stenshorne (7 out of 7 patents)

Gustav Olov Skärgård (7 out of 7 patents)

David Edward Smith (5 out of 5 patents)

4. Børre Fossli (2 out of 3 patents)

5. Sigurd Ree (2 out of 7 patents)

6. Roger Sverre Stave (2 out of 13 patents)

7. Borre Fossli (1 out of 10 patents)

8. Kjell Rune Toftevåg (1 out of 1 patent)

9. Inge Fadnes (1 out of 1 patent)

10. Arvid Iversen (1 out of 2 patents)

11. John H Cohen (1 out of 18 patents)

12. Mehdi M Rajabi (1 patent)

13. Bjorn Rohde (1 patent)

14. Bernt Eikemo (2 patents)

15. Jon Arne Hammersmark (1 patent)

16 patents: Sort by Forward Citations

1. 12723488 - Arrangement for preventing collection of debris and cuttings on the top of a riser closure device (2026-09-01),

2. 12607076 - Riser suspension device with movement limiter (2026-04-21),

3. 12595709 - Arrangement for controlling volume in a gas or oil well system (2026-04-07),

4. 12352113 - Multi-mode pumped riser arrangement and methods (2025-07-08),

5. 12352112 - Multi-mode pumped riser arrangement and methods (2025-07-08),

6. 12209461 - Multi-mode pumped riser arrangement and methods (2025-01-28),

7. 12188303 - Multi-mode pumped riser arrangement and methods (2025-01-07),

8. 11891861 - Multi-mode pumped riser arrangement and methods (2024-02-06),

9. 11085255 - System and methods for controlled mud cap drilling (2021-08-10),

10. 10787871 - System and methods for controlled mud cap drilling (2020-09-29),

11. 10053944 - Riser restrictor device (2018-08-21),

12. 9816323 - Systems and methods for subsea drilling (2017-11-14),

13. 9732760 - Impeller for centrifugal pump and use thereof when pumping drill fluid containing cuttings (2017-08-15),

14. 9664006 - Riser isolation device having automatically operated annular seal (2017-05-30),

15. 9534601 - Pump (2017-01-03),

Enhanced Drilling A.S. is a technology-driven company based in Straume, Norway, specializing in advanced drilling solutions for the oil and gas industry. The organization focuses on developing innovative technologies that enhance drilling efficiency and safety, including real-time data monitoring and automated systems. With a commitment to improving operational performance, Enhanced Drilling aims to support energy companies in optimizing their drilling processes while minimizing environmental impact.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

16 Patents

#3 in Straume

#99 in Norway

#37,788 in the World

Straume, Norway

Enhanced Drilling A.s.

Forward Citations = 27

11 inventors:

Per Christian Stenshorne (7 out of 7 patents)

Gustav Olov Skärgård (7 out of 7 patents)

David Edward Smith (5 out of 5 patents)

4. Børre Fossli (2 out of 3 patents)

5. Sigurd Ree (2 out of 7 patents)

Please report any incorrect information to [email protected]

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