For the Inventor, By the Inventor

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Calgary, Canada

Gulf Canada Resources Limited

USPTO Granted Patents = 26

CIPO Patents = 2

Forward Citations = 629

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50 inventors (with patents filed for the assignee):

Waldemar Maciejewski (5 out of 6 patents)

Jim McTurk (4 out of 5 patents)

Derrick Kershaw (4 out of 4 patents)

4. George Cymerman (3 out of 9 patents)

5. Ken N Sury (2 out of 12 patents)

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

7. John Antho Falcon (2 out of 4 patents)

8. Lubomyr M Cymbalisty (2 out of 7 patents)

9. Aldo Corti (2 out of 3 patents)

10. George J Cymerman (2 out of 3 patents)

11. Waldemar B Maciejewski (2 out of 2 patents)

12. Gordon R Thompson (2 out of 3 patents)

13. Wayne B Jansen (2 out of 3 patents)

14. Antony H Leung (2 out of 3 patents)

15. Robert C Shaw (2 out of 3 patents)

Core Competencies:

Oil Sand

Bitumen Extraction

Slurrying Process

Hydrotransport

Froth Separation

Pipeline Conditioning

Conveyor System

Microwave Monitoring

Agitated Slurry Pump

Froth Washer

Microbubble Flotation

Flocculant Control

26 patents: Sort by Forward Citations

1. 6119870 - Cycloseparator for removal of coarse solids from conditioned oil sand (2000-09-19),

2. 6076753 - Agitated slurry pump box for oil sand hydrotransport (2000-06-20),

3. 6027056 - Slurrying oil sand for hydrotransport in a pipeline (2000-02-22),

4. 6007708 - Cold dense slurrying process for extracting bitumen from oil sand (1999-12-28),

5. 6003789 - Nozzle for atomizing liquid in two phase flow (1999-12-21),

6. 5988198 - Process for pumping bitumen froth through a pipeline (1999-11-23),

7. 5954277 - Agitated slurry pump box for oil sand hydrotransport (1999-09-21),

8. 5876592 - Solvent process for bitumen separation from oil sands froth (1999-03-02),

9. 5772127 - Slurrying oil sand for hydrotransport in a pipeline (1998-06-30),

10. 5494150 - Conveyor belt system with shock-absorbing belt side travel control means (1996-02-27),

11. 5492628 - Process for reducing sludge accumulation in the hot water extraction (1996-02-20),

12. 5460270 - Oil sand extraction process with in-line middlings aeration and recycle (1995-10-24),

13. 5376276 - In situ primary froth quality measurements using microwave monitor (1994-12-27),

14. 5290433 - Froth washer (1994-03-01),

15. 5264118 - Pipeline conditioning process for mined oil-sand (1993-11-23),

Gulf Canada Resources Limited is a prominent player in the energy sector, primarily focused on the exploration and production of oil and natural gas. Headquartered in Calgary, the company leverages advanced technologies and innovative practices to optimize resource extraction and enhance operational efficiency. With a commitment to sustainable development, Gulf Canada engages in various initiatives aimed at minimizing environmental impact while meeting the growing energy demands in North America and beyond.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

26 Patents

#36 in Calgary

#555 in Canada

#24,758 in the World

Calgary, Canada

Gulf Canada Resources Limited

Forward Citations = 629

50 inventors:

Waldemar Maciejewski (5 out of 6 patents)

Jim McTurk (4 out of 5 patents)

Derrick Kershaw (4 out of 4 patents)

4. George Cymerman (3 out of 9 patents)

5. Ken N Sury (2 out of 12 patents)

Please report any incorrect information to [email protected]

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