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Calgary, Canada

Encana Corporation

USPTO Granted Patents = 13

% Expired Patents = 46.2

CIPO Patents = 5

Trademarks = 2

Forward Citations = 147

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21 inventors (with patents filed for the assignee):

Ben Nzekwu (4 out of 4 patents)

Lois Louise McCorriston (3 out of 3 patents)

Larry Weiers (3 out of 3 patents)

4. Harbir Chhina (2 out of 6 patents)

5. Grant Todd DeFosse (2 out of 2 patents)

6. Kenneth W Lowe (2 out of 2 patents)

7. Javier Alfonso Becaria Valero (2 out of 2 patents)

8. Clarence Robert Dyck (2 out of 2 patents)

9. Steve Kresnyak (1 out of 25 patents)

10. Stephen Craig Horne (1 out of 1 patent)

11. Paul D Evans (1 out of 2 patents)

12. Mark Epp (1 out of 2 patents)

13. Jan Kroman (1 out of 2 patents)

14. Michael L Farrar (1 out of 2 patents)

15. Jennifer N Pond (1 out of 1 patent)

13 patents: Sort by Forward Citations

1. 10520249 - Process and apparatus for processing a hydrocarbon gas stream (2019-12-31),

2. 8851179 - Process and process line for the preparation of hydraulic fracturing fluid (2014-10-07),

3. 8518159 - Treatment of water for use in hydraulic fracture stimulation (2013-08-27),

4. D675340 - Fuel station canopy (2013-01-29),

5. 8360152 - Process and process line for the preparation of hydraulic fracturing fluid (2013-01-29),

6. 8235112 - Gas flow system (2012-08-07),

7. 8215387 - In situ combustion in gas over bitumen formations (2012-07-10),

8. 8167040 - In situ combustion in gas over bitumen formations (2012-05-01),

9. 7954547 - Gas flow system (2011-06-07),

10. 7900701 - In situ combustion in gas over bitumen formations (2011-03-08),

11. 7556099 - Recovery process (2009-07-07),

12. 7516789 - Hydrocarbon recovery facilitated by in situ combustion utilizing horizontal well pairs (2009-04-14),

13. 6984292 - Water treatment process for thermal heavy oil recovery (2006-01-10),

Encana Corporation is an energy company focused on the development of natural gas, oil and natural gas liquids in North America. With a diverse portfolio of assets, including premier positions in the Permian Basin, Montney and Duvernay, Encana is committed to innovative, sustainable and responsible energy production.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

Encana Corporation

13 Patents

#84 in Calgary

#1,158 in Canada

#44,950 in the World

Calgary, Canada

Encana Corporation

Forward Citations = 147

21 inventors:

Ben Nzekwu (4 out of 4 patents)

Lois Louise McCorriston (3 out of 3 patents)

Larry Weiers (3 out of 3 patents)

4. Harbir Chhina (2 out of 6 patents)

5. Grant Todd DeFosse (2 out of 2 patents)

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