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For the Inventor, By the Inventor

Calgary, Canada

Murphy Oil Company Ltd.

USPTO Granted Patents = 21

% Expired Patents = 28.6


Forward Citations = 335

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41 inventors (with patents filed for the assignee):

goldMedal Waldemar Maciejewski (6 out of 6 patents)

silverMedal George Cymerman (5 out of 9 patents)

bronzeMedal Jim McTurk (4 out of 5 patents)

4.  Derrick Kershaw (4 out of 4 patents)

5.  Linden Bland (3 out of 3 patents)

6.  Michael Carniato (2 out of 8 patents)

7.  Ron Cleminson (2 out of 9 patents)

8.  Ken N Sury (2 out of 12 patents)

9.  David Fudge (2 out of 3 patents)

10.  Edward W Chan (2 out of 3 patents)

11.  Clifford J Anderson (2 out of 4 patents)

12.  Brian Knapper (1 out of 6 patents)

13.  Barry Bara (1 out of 12 patents)

14.  Jonathan Spence (1 out of 12 patents)

15.  Keng Chung (1 out of 7 patents)


21 patents:

1. 8388831 - Compact slurry preparation system for oil sand (2013-03-05),
2. 7984866 - Relocatable oil sand slurry preparation system (2011-07-26),
3. 7763166 - Relocatable countercurrent decantation system (2010-07-27),
4. 7481318 - Apparatus and process for coalescing bitumen in an oil sand slurry (2009-01-27),
5. 7431830 - Compact slurry preparation system for oil sand (2008-10-07),
6. 7025874 - Nozzle/mixer assembly (2006-04-11),
7. 6119870 - Cycloseparator for removal of coarse solids from conditioned oil sand (2000-09-19),
8. 6076753 - Agitated slurry pump box for oil sand hydrotransport (2000-06-20),
9. 6027056 - Slurrying oil sand for hydrotransport in a pipeline (2000-02-22),
10. 6007708 - Cold dense slurrying process for extracting bitumen from oil sand (1999-12-28),
11. 6003789 - Nozzle for atomizing liquid in two phase flow (1999-12-21),
12. 5988198 - Process for pumping bitumen froth through a pipeline (1999-11-23),
13. 5954277 - Agitated slurry pump box for oil sand hydrotransport (1999-09-21),
14. 5876592 - Solvent process for bitumen separation from oil sands froth (1999-03-02),
15. 5772127 - Slurrying oil sand for hydrotransport in a pipeline (1998-06-30),
Company Overview
Murphy Oil Company Ltd. is a prominent player in the global energy sector, specializing in the exploration and production of oil and natural gas. Headquartered in Calgary, Canada, the company focuses on developing innovative solutions to enhance resource extraction and operational efficiency. With a strong commitment to sustainability, Murphy Oil engages in various initiatives aimed at reducing environmental impact while meeting the growing energy demands across North America and beyond.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

21 Patents

#53 in Calgary

#685 in Canada

#30,001 in the World

Calgary, CA
Calgary, Canada

Murphy Oil Company Ltd.

Forward Citations = 335

41 inventors:

goldMedal Waldemar Maciejewski (6 out of 6 patents)

silverMedal George Cymerman (5 out of 9 patents)

bronzeMedal Jim McTurk (4 out of 5 patents)

4.  Derrick Kershaw (4 out of 4 patents)

5.  Linden Bland (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Murphy Oil Company Ltd.. Retrieved from https://idiyas.com/company/murphy-oil-company

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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