For the Inventor, By the Inventor

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Calgary, Canada

Bj Tool Services Ltd.

USPTO Granted Patents = 3

CIPO Patents = 3

Forward Citations = 32

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3 inventors (with patents filed for the assignee):

Dale Kunz (2 out of 7 patents)

John Hughes (1 out of 16 patents)

John Wilson Thomas (1 out of 1 patent)

4. Witold P Serafin (1 patent)

5. Dale Ian Kunz (0 patent)

6. Barry J Tate (0 patent)

7. Bruce A Cram (0 patent)

3 patents: Sort by Forward Citations

1. 8336615 - Low pressure-set packer (2012-12-25),

2. 7997337 - Eutectic material-based seal element for packers (2011-08-16),

3. 7673692 - Eutectic material-based seal element for packers (2010-03-09),

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USPTO Data Jan 1 1976 - Jan 6 2026

3 Patents

#292 in Calgary

#4,252 in Canada

Calgary, Canada

Bj Tool Services Ltd.

Forward Citations = 32

3 inventors:

Dale Kunz (2 out of 7 patents)

John Hughes (1 out of 16 patents)

John Wilson Thomas (1 out of 1 patent)

4. Witold P Serafin (1 patent)

5. Dale Ian Kunz (0 patent)

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