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For the Inventor, By the Inventor

Calgary, Canada

Imperial Oil Resources


USPTO Granted Patents = 14

% Expired Patents = 42.9


Forward Citations = 234

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27 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.  Michael Carniato (2 out of 8 patents)

6.  Ron Cleminson (2 out of 9 patents)

7.  Ken N Sury (2 out of 12 patents)

8.  David Fudge (2 out of 3 patents)

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

10.  Brian Knapper (1 out of 6 patents)

11.  Barry Bara (1 out of 12 patents)

12.  Jonathan Spence (1 out of 12 patents)

13.  Robert Siy (1 out of 5 patents)

14.  Khaled Obaia (1 out of 5 patents)

15.  Daniel D Joseph (1 out of 12 patents)


14 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. 5772127 - Slurrying oil sand for hydrotransport in a pipeline (1998-06-30),
Company Overview
Imperial Oil Resources, headquartered in Calgary, specializes in the exploration, production, and refining of oil and natural gas. The company is a key player in Canada's energy sector, focusing on developing innovative technologies for sustainable resource extraction and environmental stewardship. With a commitment to operational excellence, Imperial Oil integrates advanced research in energy efficiency and emissions reduction, contributing to the evolution of energy solutions in North America and beyond.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 13 2026

14 Patents

#78 in Calgary

#1,067 in Canada

#42,249 in the World

Calgary, CA
Calgary, Canada

Imperial Oil Resources

Forward Citations = 234

27 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.  Michael Carniato (2 out of 8 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Imperial Oil Resources. Retrieved from https://idiyas.com/company/imperial-oil-resources

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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