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For the Inventor, By the Inventor

Calgary, Canada

Encana Corporation

USPTO Granted Patents = 13

% Expired Patents = 46.2


Trademarks = 2

Forward Citations = 147

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21 inventors (with patents filed for the assignee):

goldMedal Ben Nzekwu (4 out of 4 patents)

silverMedal Lois Louise McCorriston (3 out of 3 patents)

bronzeMedal 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:

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),
Company Overview
Encana Corporation, headquartered in Calgary, Canada, is a prominent player in the energy sector, focusing primarily on the exploration and production of natural gas and oil. The company specializes in developing advanced extraction techniques and technologies to optimize resource recovery while minimizing environmental impact. With a commitment to sustainable practices, Encana operates across various regions, leveraging innovative solutions to meet the growing energy demands while contributing to the transition towards cleaner energy sources.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Encana Corporation USPTO Patent Assignee Logo
13 Patents

#84 in Calgary

#1,166 in Canada

#45,081 in the World

Calgary, CA
Calgary, Canada

Encana Corporation

Forward Citations = 147

21 inventors:

goldMedal Ben Nzekwu (4 out of 4 patents)

silverMedal Lois Louise McCorriston (3 out of 3 patents)

bronzeMedal Larry Weiers (3 out of 3 patents)

4.  Harbir Chhina (2 out of 6 patents)

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

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Encana Corporation. Retrieved from https://idiyas.com/company/encana

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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