For the Inventor, By the Inventor

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Calgary, Canada

General Downhole Technologies Ltd.

USPTO Granted Patents = 3

Forward Citations = 19

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2 inventors (with patents filed for the assignee):

David Cramer (3 out of 13 patents)

Michael James Harvey (2 out of 10 patents)

3 patents: Sort by Forward Citations

1. 10107073 - System, method and apparatus for controlling fluid flow through drill string (2018-10-23),

2. 9328576 - System, method and apparatus for controlling fluid flow through drill string (2016-05-03),

3. 9187997 - System, method and apparatus for reducing shock and vibration in down hole tools (2015-11-17),

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USPTO Data Jan 1 1976 - Sep 22 2026

3 Patents

#302 in Calgary

#4,357 in Canada

Calgary, Canada

General Downhole Technologies Ltd.

Forward Citations = 19

2 inventors:

David Cramer (3 out of 13 patents)

Michael James Harvey (2 out of 10 patents)

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