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For the Inventor, By the Inventor

Houston, TX, United States of America

Canrig Drilling Technology Ltd.


USPTO Granted Patents = 73

% Expired Patents = 13.7



Trademarks = 16

Forward Citations = 1,791

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63 inventors (with patents filed for the assignee):

goldMedal Brian Ellis (15 out of 56 patents)

silverMedal Beat Kuttel (14 out of 22 patents)

bronzeMedal Scott Gilbert Boone (13 out of 36 patents)

4.  Douglas Andrew Hunter (11 out of 19 patents)

5.  Faisal Yousef (10 out of 30 patents)

6.  Kevin R Williams (8 out of 40 patents)

7.  Beat Küttel (7 out of 11 patents)

8.  Chris Papouras (6 out of 6 patents)

9.  John Thomas Scarborough (5 out of 7 patents)

10.  Allan Stewart Richardson (4 out of 20 patents)

11.  Gary Pace (4 out of 6 patents)

12.  Randall S Pyrch (4 out of 4 patents)

13.  Alan S Richardson (4 out of 4 patents)

14.  Greg Kostiuk (4 out of 4 patents)

15.  Craig Currie Weems (4 out of 10 patents)


Core Competencies:
Drilling Method
Tubular Handling
Automated Systems
Top Drive Assembly
Permanent Magnet Motor
Torque Control
Directional Drilling
Well Data Alerts
Cooling Systems
Torque Wrench
Pipe Handling
Mud-Gas Separator

73 patents:

1. 10615666 - Internal closed loop cooling (2020-04-07),
2. 10520397 - Methods and apparatuses for defect diagnosis in a mechanical system (2019-12-31),
3. 10295119 - Ruggedized housing (2019-05-21),
4. 10000981 - Back pressure control system (2018-06-19),
5. 9952119 - System for operating a top drive assembly for subterranean operations (2018-04-24),
6. 9863194 - System for manipulating tubulars for subterranean operations (2018-01-09),
7. 9819236 - Methods for coupling permanent magnets to a rotor body of an electric motor (2017-11-14),
8. 9810028 - EM gap sub assembly (2017-11-07),
9. 9793781 - Internal closed loop cooling (2017-10-17),
10. 9771788 - Stiction control (2017-09-26),
11. 9759019 - Tubular joint elevator and method (2017-09-12),
12. 9739098 - Assembled drilling rig moving unit (2017-08-22),
13. 9725968 - Force application reduction employing actuator and thrust bearing (2017-08-08),
14. 9722522 - Method for controlling torque in permanent magnet motor drives (2017-08-01),
15. 9706185 - Device control employing three-dimensional imaging (2017-07-11),
Canrig Drilling Technology Ltd., based in Houston, TX, specializes in advanced drilling technology solutions. The company focuses on developing innovative systems for drilling operations, including automated systems, top drive assemblies, and tubular handling technologies. Canrig is recognized for its expertise in directional drilling and torque control, enhancing operational efficiency and safety in the oil and gas industry. Their commitment to integrating cutting-edge technologies, such as permanent magnet motors and well data alerts, positions them as a leader in the drilling sector.
Profile summary based on public USPTO records.

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USPTO Data Jan 1 1976 - Sep 29 2026

Canrig Drilling Technology Ltd.
73 Patents

#83 in Houston, TX

#276 in Texas

#5,034 in US

#10,251 in the World

Houston, TX (US)
Houston, TX, United States of America

Canrig Drilling Technology Ltd.

Forward Citations = 1,791

63 inventors:

goldMedal Brian Ellis (15 out of 56 patents)

silverMedal Beat Kuttel (14 out of 22 patents)

bronzeMedal Scott Gilbert Boone (13 out of 36 patents)

4.  Douglas Andrew Hunter (11 out of 19 patents)

5.  Faisal Yousef (10 out of 30 patents)

Please report any incorrect information to [email protected]
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