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Patent applications and USPTO patent grants for Cunliffe; Mark Christopher.The latest application filed is for "vibratory apparatus for drilling apparatus".
Patent | Date |
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Vibratory apparatus for drilling apparatus Grant 10,472,895 - Powell , et al. Nov | 2019-11-12 |
Vibratory Apparatus For Drilling Apparatus App 20180010391 - POWELL; Peter Evan ;   et al. | 2018-01-11 |
Mechanical force generator for a downhole excitation apparatus Grant 9,322,237 - Schicker , et al. April 26, 2 | 2016-04-26 |
Extended Reach Drilling App 20140332278 - West; Gregory Donald ;   et al. | 2014-11-13 |
Mechanical Force Generator For A Downhole Excitation Apparatus App 20140054090 - Schicker; Owen ;   et al. | 2014-02-27 |
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