For the Inventor, By the Inventor

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Calgary, Canada

Petroleum Recovery Institute

USPTO Granted Patents = 3

Forward Citations = 125

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8 inventors (with patents filed for the assignee):

Conrad Ayasse (1 out of 24 patents)

Jerry Chin Shaw (1 out of 2 patents)

Raymond Tsuen (1 out of 1 patent)

4. Alexandru T Turta (1 out of 1 patent)

5. Malcolm Greaves (1 out of 1 patent)

6. James E Fosti (1 out of 1 patent)

7. Phillip M Sigmund (1 out of 1 patent)

8. Jong I Lee (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 5626191 - Oilfield in-situ combustion process (1997-05-06),

2. 5513707 - Process for chemically treating reservoir pyrobitumen to improve (1996-05-07),

3. 4217955 - Oil recovery process (1980-08-19),

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USPTO Data Jan 1 1976 - Dec 16 2025

3 Patents

#291 in Calgary

#4,243 in Canada

Calgary, Canada

Petroleum Recovery Institute

Forward Citations = 125

8 inventors:

Conrad Ayasse (1 out of 24 patents)

Jerry Chin Shaw (1 out of 2 patents)

Raymond Tsuen (1 out of 1 patent)

4. Alexandru T Turta (1 out of 1 patent)

5. Malcolm Greaves (1 out of 1 patent)

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