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Straume, Norway

Enhanced Drilling A.s.

USPTO Granted Patents = 13

CIPO Patents = 5

EPO Patents = 9

Trademarks = 4

Forward Citations = 25

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17 inventors (with patents filed for the assignee):

Per Christian Stenshorne (5 out of 5 patents)

David Edward Smith (5 out of 5 patents)

Gustav Olov Skärgård (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)

13 patents: Sort by Forward Citations

1. 12352113 - Multi-mode pumped riser arrangement and methods (2025-07-08),

2. 12352112 - Multi-mode pumped riser arrangement and methods (2025-07-08),

3. 12209461 - Multi-mode pumped riser arrangement and methods (2025-01-28),

4. 12188303 - Multi-mode pumped riser arrangement and methods (2025-01-07),

5. 11891861 - Multi-mode pumped riser arrangement and methods (2024-02-06),

6. 11085255 - System and methods for controlled mud cap drilling (2021-08-10),

7. 10787871 - System and methods for controlled mud cap drilling (2020-09-29),

8. 10053944 - Riser restrictor device (2018-08-21),

9. 9816323 - Systems and methods for subsea drilling (2017-11-14),

10. 9732760 - Impeller for centrifugal pump and use thereof when pumping drill fluid containing cuttings (2017-08-15),

11. 9664006 - Riser isolation device having automatically operated annular seal (2017-05-30),

12. 9534601 - Pump (2017-01-03),

13. 9428975 - Drilling fluid pump module coupled to specially configured riser segment and method for coupling the pump module to the riser (2016-08-30),

Enhanced Drilling A.S. is a leading provider of drilling technology and services for the oil and gas industry. With a focus on innovation and efficiency, Enhanced Drilling offers a range of solutions that improve drilling performance, reduce costs, and minimize environmental impact. Their cutting-edge technology includes Managed Pressure Drilling (MPD) systems, Riserless Mud Recovery (RMR) systems, and Dual Gradient Drilling (DGD) systems. By constantly pushing the boundaries of what is possible in drilling operations, Enhanced Drilling is helping to shape the future of the industry.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

13 Patents

#3 in Straume

#120 in Norway

#43,639 in the World

Straume, Norway

Enhanced Drilling A.s.

Forward Citations = 25

17 inventors:

Per Christian Stenshorne (5 out of 5 patents)

David Edward Smith (5 out of 5 patents)

Gustav Olov Skärgård (5 out of 5 patents)

4. Børre Fossli (2 out of 3 patents)

5. Sigurd Ree (2 out of 7 patents)

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