For the Inventor, By the Inventor

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Canadian Occidential Petroleum, Ltd.

USPTO Granted Patents = 3

Forward Citations = 50

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6 inventors (with patents filed for the assignee):

Waldemar Maciejewski (2 out of 6 patents)

Jim McTurk (2 out of 5 patents)

Derrick Kershaw (2 out of 4 patents)

4. Alan C Hartley (1 out of 2 patents)

5. Russell S Krasey (1 out of 2 patents)

6. Norman Obst (1 out of 2 patents)

3 patents: Sort by Forward Citations

1. 6155792 - Wireline retrievable oilwell pumping system (2000-12-05),

2. 6027056 - Slurrying oil sand for hydrotransport in a pipeline (2000-02-22),

3. 5772127 - Slurrying oil sand for hydrotransport in a pipeline (1998-06-30),

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USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#600 in

#4,250 in Canada

Canadian Occidential Petroleum, Ltd.

Forward Citations = 50

6 inventors:

Waldemar Maciejewski (2 out of 6 patents)

Jim McTurk (2 out of 5 patents)

Derrick Kershaw (2 out of 4 patents)

4. Alan C Hartley (1 out of 2 patents)

5. Russell S Krasey (1 out of 2 patents)

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