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Calgary, Canada

Petro-Canada Exploration Inc.

USPTO Granted Patents = 22

Forward Citations = 960

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26 inventors (with patents filed for the assignee):

Lubomyr M Cymbalisty (4 out of 7 patents)

Emerson Sanford (4 out of 4 patents)

Robert Shaw (3 out of 3 patents)

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

5. Russell G Smith (2 out of 3 patents)

6. John C Todd (2 out of 4 patents)

7. Joseph K Liu (2 out of 2 patents)

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

9. Thomas K Perkins (1 out of 34 patents)

10. Gordon R Thompson (1 out of 3 patents)

11. Loyd R Kern (1 out of 1 patent)

12. Kenneth Porteous (1 out of 3 patents)

13. Peter Charles Flynn (1 out of 1 patent)

14. Thaddeus E Kizior (1 out of 3 patents)

15. William Lavender (1 out of 1 patent)

22 patents: Sort by Forward Citations

1. 4514305 - Azeotropic dehydration process for treating bituminous froth (1985-04-30),

2. 4489828 - Device for splicing cable ends (1984-12-25),

3. 4474616 - Blending tar sands to provide feedstocks for hot water process (1984-10-02),

4. 4462892 - Control of process aid used in hot water process for extraction of (1984-07-31),

5. 4456536 - Skimmer apparatus for recovering bitumen (1984-06-26),

6. 4433239 - Method and apparatus for on-line monitoring of bitumen content in tar (1984-02-21),

7. 4383914 - Dilution centrifuging of bitumen froth from the hot water process for (1983-05-17),

8. 4372174 - Method and apparatus for sampling a core of tar sand (1983-02-08),

9. 4328710 - Homogenizer/subsampler for tar sand process streams (1982-05-11),

10. 4284360 - Homogenizer/subsampler for tar sand process streams (1981-08-18),

11. 4282103 - Method for controlling flocculant addition to tar sand tailings (1981-08-04),

12. 4225433 - Filtration of hot water extraction process whole tailings (1980-09-30),

13. 4225422 - Beneficiation of heavy minerals from bituminous sands residues by dry (1980-09-30),

14. 4201656 - Process aid addition in hot water process based on feed fines content (1980-05-06),

15. 4197937 - Non-ionic emulsifying release agent for bituminous sands conveyor belt (1980-04-15),

Petro-Canada Exploration Inc., based in Calgary, specializes in the exploration and production of oil and natural gas resources. The company is engaged in various stages of hydrocarbon development, focusing on innovative extraction techniques and sustainable practices. With a commitment to environmental stewardship, Petro-Canada aims to enhance energy efficiency while meeting the growing demand for energy. Its operations primarily span across Canada, contributing significantly to the country's energy landscape.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

22 Patents

#48 in Calgary

#651 in Canada

#28,724 in the World

Calgary, Canada

Petro-Canada Exploration Inc.

Forward Citations = 960

26 inventors:

Lubomyr M Cymbalisty (4 out of 7 patents)

Emerson Sanford (4 out of 4 patents)

Robert Shaw (3 out of 3 patents)

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

5. Russell G Smith (2 out of 3 patents)

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