Forward Citations = 80

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9 inventors (with patents filed for the assignee):

Laurier L Schramm (2 out of 4 patents)

Russell G Smith (2 out of 3 patents)

Lubomyr M Cymbalisty (1 out of 7 patents)

4. Lloyd W Trevoy (1 out of 3 patents)

5. Jan Wojno (1 out of 1 patent)

6. Alvin J Maskwa (1 out of 1 patent)

7. Gustaaf Stipdonk (1 out of 1 patent)

8. Ken Gehring (1 out of 1 patent)

9. Gordon Lorenz (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 4489828 - Device for splicing cable ends (1984-12-25),

2. 4474616 - Blending tar sands to provide feedstocks for hot water process (1984-10-02),

3. 4462892 - Control of process aid used in hot water process for extraction of (1984-07-31),

4. 4456536 - Skimmer apparatus for recovering bitumen (1984-06-26),

5. 4372174 - Method and apparatus for sampling a core of tar sand (1983-02-08),

Petrofina Canada Inc. is a leading energy company based in Canada, delivering top-notch services in the oil and gas industry. With a focus on innovation and sustainability, Petrofina Canada Inc. is committed to providing reliable and efficient energy solutions to its customers. Their dedication to environmental responsibility sets them apart in the industry, making them a trusted partner for all energy needs.

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USPTO Data Jan 1 1976 - Dec 9 2025

5 Patents

#196 in Calgary

#2,750 in Canada

Calgary, Canada

Petrofina Canada Inc.