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Patent applications and USPTO patent grants for Askew; Warren E..The latest application filed is for "articulated directional drilling motor assembly".
Patent | Date |
---|---|
Articulated directional drilling motor assembly Grant 5,727,641 - Eddison , et al. March 17, 1 | 1998-03-17 |
Downhole adjustable stabilizer Grant 5,181,576 - Askew , et al. January 26, 1 | 1993-01-26 |
Directional drilling methods and apparatus Grant 5,139,094 - Prevedel , et al. August 18, 1 | 1992-08-18 |
Downhole adjustable bent assemblies Grant 5,117,927 - Askew June 2, 1 | 1992-06-02 |
Hydraulic drilling jar Grant 5,033,557 - Askew July 23, 1 | 1991-07-23 |
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