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Nexen Energy Ulc

USPTO Granted Patents = 14

% Expired Patents = 64.3

CIPO Patents = 1

Forward Citations = 22

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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 6 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),

Company Overview

Nexen Energy ULC is a prominent player in the energy sector, specializing in the exploration and production of oil and natural gas. With a strong focus on sustainable practices, the company is committed to developing innovative technologies that enhance efficiency and reduce environmental impact. Operating primarily in Canada, Nexen leverages advanced techniques in resource extraction and management, contributing to the energy landscape while prioritizing safety and community engagement.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

14 Patents

#66 in

#1,069 in Canada

#42,290 in the World

Nexen Energy Ulc

Forward Citations = 22

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 6 patents)

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

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nexen Energy Ulc. Retrieved from https://idiyas.com/company/nexen-energy-ulc

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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