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Nexen Energy Ulc

USPTO Granted Patents = 14

CIPO Patents = 1

Trademarks = 1

Forward Citations = 20

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31 inventors (with patents filed for the assignee):

Richard Kelso Kerr (7 out of 13 patents)

Nestor Gregorio Zerpa Reques (2 out of 2 patents)

Dana Pettigrew (2 out of 2 patents)

4. Pedro Pereira Almao (1 out of 5 patents)

5. Chad L Felch (1 out of 29 patents)

6. Thomas Harding (1 out of 3 patents)

7. Bryan J Kumfer (1 out of 18 patents)

8. Matthew R Patterson (1 out of 10 patents)

9. Clementina Sosa (1 out of 3 patents)

10. Julio Sanchez (1 out of 1 patent)

11. Jason Russell Bruce Dickson (1 out of 1 patent)

12. Sergio Merchan (1 out of 1 patent)

13. James Frederick Pyecroft (1 out of 1 patent)

14. Jurgen Siegfried Lehmann (1 out of 1 patent)

15. Omar El-Naggar (1 out of 1 patent)

14 patents: Sort by Forward Citations

1. 10145225 - Later stage hydrocarbon production processes (2018-12-04),

2. 10041341 - Processes for producing hydrocarbons from a reservoir (2018-08-07),

3. 10030491 - Method for increasing gas recovery in fractures proximate fracture treated wellbores (2018-07-24),

4. 10007015 - Methods, systems and devices for predicting reservoir properties (2018-06-26),

5. 9828841 - Sagdox geometry (2017-11-28),

6. 9803456 - SAGDOX geometry for impaired bitumen reservoirs (2017-10-31),

7. 9650578 - Integrated central processing facility (CPF) in oil field upgrading (OFU) (2017-05-16),

8. 9644468 - Steam assisted gravity drainage processes with the addition of oxygen (2017-05-09),

9. 9562199 - Systems and methods for catalytic steam cracking of non-asphaltene containing heavy hydrocarbons (2017-02-07),

10. 9328592 - Steam anti-coning/cresting technology ( SACT) remediation process (2016-05-03),

11. 9163491 - Steam assisted gravity drainage processes with the addition of oxygen (2015-10-20),

12. 8944168 - High pressure multistage centrifugal pump for fracturing hydrocarbon reserves (2015-02-03),

13. 8828351 - [object Object] (2014-09-09),

14. 8763704 - High pressure hydrocarbon fracturing on demand method and related process (2014-07-01),

Nexen Energy ULC is a Canadian-based oil and gas company that operates in the energy sector. The company focuses on exploration, development, and production of oil sands, shale gas, and conventional oil and gas assets. Nexen Energy ULC is a subsidiary of CNOOC Limited, a leading international energy company with operations around the world.

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

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

14 Patents

#124 in

#1,019 in Canada

#40,962 in the World

Nexen Energy Ulc

Forward Citations = 20

31 inventors:

Richard Kelso Kerr (7 out of 13 patents)

Nestor Gregorio Zerpa Reques (2 out of 2 patents)

Dana Pettigrew (2 out of 2 patents)

4. Pedro Pereira Almao (1 out of 5 patents)

5. Chad L Felch (1 out of 29 patents)

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