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For the Inventor, By the Inventor

Calgary, Canada

Imperial Oil Resources


USPTO Granted Patents = 14


Forward Citations = 233

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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),
Imperial Oil Resources is a Canadian petroleum company that is integrated in all aspects of the oil and gas industry, including exploration, production, refining and distribution. With a history dating back over a century, Imperial Oil is one of Canada's largest oil producers and is committed to responsible energy development.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Dec 30 2025

14 Patents

#76 in Calgary

#1,017 in Canada

#40,936 in the World

...
Calgary, Canada

Imperial Oil Resources

Forward Citations = 233

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)

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