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Calgary, Canada

Petro-canada Exploration Inc.

USPTO Granted Patents = 22

Forward Citations = 957

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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. is a leading energy company specializing in oil and gas exploration, production, and development. With a focus on sustainable practices and cutting-edge technology, Petro-Canada is committed to meeting the world's energy needs while minimizing environmental impact. The company operates in key locations worldwide, leveraging its expertise and advanced capabilities to deliver high-quality results for its customers and stakeholders.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

22 Patents

#44 in Calgary

#611 in Canada

#27,863 in the World

Calgary, Canada

Petro-canada Exploration Inc.

Forward Citations = 957

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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