loadpatents
Patent applications and USPTO patent grants for Lacour; Bertrand.The latest application filed is for "rotary steerable drilling system for drilling a borehole in an earth formation".
Patent | Date |
---|---|
Rotary steerable drilling system for drilling a borehole in an earth formation Grant 9,970,235 - Lacour May 15, 2 | 2018-05-15 |
Directional drilling system Grant 9,057,223 - Perrin , et al. June 16, 2 | 2015-06-16 |
Rotary Steerable Drilling System for Drilling a Borehole in an Earth Formation App 20140102800 - Lacour; Bertrand | 2014-04-17 |
Directional Drilling System App 20130341098 - Perrin; Cedric ;   et al. | 2013-12-26 |
Rotary steerable devices and methods of use Grant 7,980,328 - Hallworth , et al. July 19, 2 | 2011-07-19 |
Rotary Steerable Devices And Methods Of Use App 20100139983 - Hallworth; John ;   et al. | 2010-06-10 |
Self-stabilized And Anti-whirl Drill Bits And Bottom-hole Assemblies And Systems For Using The Same App 20100101867 - SINDT; OLIVIER ;   et al. | 2010-04-29 |
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