For the Inventor, By the Inventor

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Nov Downhole Eurasia Limited

USPTO Granted Patents = 25

% Expired Patents = 8.0

CIPO Patents = 1

EPO Patents = 11

Forward Citations = 63

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31 inventors (with patents filed for the assignee):

Alan MacKenzie (4 out of 5 patents)

Alan Martyn Eddison (4 out of 27 patents)

Rory McCrae Tulloch (4 out of 21 patents)

4. Mark Adam (3 out of 9 patents)

5. Haydn G Smith (3 out of 3 patents)

6. Brian McCarthy (2 out of 4 patents)

7. Philip Graham Rodger (2 out of 2 patents)

8. Matthew Shaw (2 out of 2 patents)

9. Terry R Matthias (2 out of 20 patents)

10. George Alexander Burnett (1 out of 27 patents)

11. Ryan Basson Graham (1 out of 7 patents)

12. Mark Kendall Adam (1 out of 47 patents)

13. Brad Ivie (1 out of 3 patents)

14. Alagappan Viswanathan (1 out of 1 patent)

15. Alastair Henry Walter MacFarlane (1 out of 3 patents)

Core Competencies:

Drill Bit

Downhole Devices

Selective Actuator

Rotary Tool

Vibration Assembly

Under-Reamer

Cutting Element

Downhole Motor

Actuation Apparatus

Pulse-Generating

Lockable Reamer

Cementing Tubing

25 patents: Sort by Forward Citations

1. 12692752 - Drill bit (2026-07-28),

2. 11499374 - Downhole devices and associated apparatus and methods (2022-11-15),

3. 10830011 - Selective downhole actuator (2020-11-10),

4. 10794119 - Rotary downhole tool (2020-10-06),

5. 10724303 - Downhole vibration assembly and method of using same (2020-07-28),

6. 10711199 - Processing apparatus (2020-07-14),

7. 10628618 - Drill bit design (2020-04-21),

8. 10294728 - Downhole under-reamer and associated methods (2019-05-21),

9. 10138684 - Multi cycle downhole tool (2018-11-27),

10. 10081984 - Downhole motor, drill string provided with such a motor and method of releasing a stuck drill bit attached to such a motor (2018-09-25),

11. 10024109 - Under-reamer (2018-07-17),

12. 10000976 - Cutting element (2018-06-19),

13. 10000975 - Cutting element (2018-06-19),

14. 9970264 - Downhole actuation apparatus and associated methods (2018-05-15),

15. 9945184 - Downhole under-reamer and associated methods (2018-04-17),

Nov Downhole Eurasia Limited specializes in advanced technologies and solutions for the oil and gas industry, focusing on downhole equipment and services. The company is known for its innovative approaches to enhancing drilling efficiency and safety, leveraging expertise in engineering and materials science. Operating primarily in the Eurasian region, Nov Downhole aims to support energy exploration and production through cutting-edge research and development, contributing to the evolving landscape of energy resources.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

Nov Downhole Eurasia Limited

25 Patents

#29 in

#701 in United Kingdom

#25,681 in the World

Nov Downhole Eurasia Limited

Forward Citations = 63

31 inventors:

Alan MacKenzie (4 out of 5 patents)

Alan Martyn Eddison (4 out of 27 patents)

Rory McCrae Tulloch (4 out of 21 patents)

4. Mark Adam (3 out of 9 patents)

5. Haydn G Smith (3 out of 3 patents)

Please report any incorrect information to [email protected]

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