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7 inventors (with patents filed for the assignee):

David Devlin (4 out of 12 patents)

Michael Harvey (4 out of 4 patents)

Jovan Vracar (2 out of 4 patents)

4. Vladimir Jorgic (1 out of 2 patents)

5. Mike Harvey (1 out of 1 patent)

6. Dave Devlin (1 out of 1 patent)

7. Jovan Vrcar (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 12104442 - System, method and apparatus for hydraulic downhole stick-slip mitigation (2024-10-01),

2. 11873686 - System, method and apparatus for downhole torque-transferring ball screw (2024-01-16),

3. 11851955 - Downhole tool with radial shock absorber and stabilizer (2023-12-26),

4. 11713665 - Systems, methods, and devices for directionally drilling an oil well while rotating including remotely controlling drilling equipment (2023-08-01),

5. 11142952 - System, method and apparatus for well string clutch (2021-10-12),

General Downhole Tools, Ltd. is a leading provider of innovative downhole drilling tools and solutions for the oil and gas industry. With years of experience and expertise, we deliver high-quality products and services to maximize drilling efficiency and minimize downtime. Our comprehensive range of tools includes MWD/LWD systems, drilling motors, and drilling jars, designed to withstand the toughest drilling conditions. Visit our website to learn more about our products and services.

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Company Badge

USPTO Data Jan 1 1976 - Dec 23 2025

5 Patents

#196 in Calgary

#2,749 in Canada

Calgary, Canada

General Downhole Tools, Ltd.