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Calgary, Canada

Hbog-Oil Sands Limited Partnership

USPTO Granted Patents = 13

Forward Citations = 232

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25 inventors (with patents filed for the assignee):

Antony H Leung (3 out of 3 patents)

George J Cymerman (2 out of 3 patents)

Waldemar B Maciejewski (2 out of 2 patents)

4. Laurier L Schramm (2 out of 4 patents)

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

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

7. Edward W Chan (1 out of 3 patents)

8. Anthony H Leung (1 out of 1 patent)

9. Russell G Smith (1 out of 3 patents)

10. Gordon R Larson (1 out of 1 patent)

11. Malcolm S Betts (1 out of 1 patent)

12. Patrick D Dougan (1 out of 1 patent)

13. Keng H Chung (1 out of 1 patent)

14. Ethel A Nakano (1 out of 1 patent)

15. Samson Y Ng (1 out of 1 patent)

13 patents: Sort by Forward Citations

1. 5494150 - Conveyor belt system with shock-absorbing belt side travel control means (1996-02-27),

2. 5492628 - Process for reducing sludge accumulation in the hot water extraction (1996-02-20),

3. 5460270 - Oil sand extraction process with in-line middlings aeration and recycle (1995-10-24),

4. 5376276 - In situ primary froth quality measurements using microwave monitor (1994-12-27),

5. 5290433 - Froth washer (1994-03-01),

6. 5264118 - Pipeline conditioning process for mined oil-sand (1993-11-23),

7. 5118408 - Reducing the water and solids contents of bitumen froth moving through (1992-06-02),

8. 5039227 - Mixer circuit for oil sand (1991-08-13),

9. 5009773 - Monitoring surfactant content to control hot water process for tar sand (1991-04-23),

10. 4783268 - Microbubble flotation process for the separation of bitumen from an oil (1988-11-08),

11. 4776949 - Recycle of secondary froth in the hot water process for extracting (1988-10-11),

12. 4642223 - Method for removing spent catalyst from a reactor tower and assembly for (1987-02-10),

13. 4637417 - Use of a submersible viscometer in the primary separation step of the (1987-01-20),

Hbog-oil Sands Limited Partnership is a leading oil and gas company specializing in oil sands development. With a focus on sustainable and responsible resource extraction, the company is committed to meeting the energy needs of today without compromising the needs of future generations. Hbog-oil Sands Limited Partnership has a proven track record of successful projects and continues to innovate in the field of oil sands technology.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Jan 6 2026

13 Patents

#81 in Calgary

#1,117 in Canada

#43,713 in the World

Calgary, Canada

Hbog-Oil Sands Limited Partnership

Forward Citations = 232

25 inventors:

Antony H Leung (3 out of 3 patents)

George J Cymerman (2 out of 3 patents)

Waldemar B Maciejewski (2 out of 2 patents)

4. Laurier L Schramm (2 out of 4 patents)

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

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