loadpatents
Patent applications and USPTO patent grants for Copold; Derek.The latest application filed is for "downhole roller".
Patent | Date |
---|---|
Downhole Roller App 20210002967 - Vasireddy; Sashank ;   et al. | 2021-01-07 |
Downhole roller Grant 10,781,647 - Copold Sept | 2020-09-22 |
Modular electro-mechanical assembly for downhole device Grant 10,662,712 - Copold , et al. | 2020-05-26 |
Modular Electro-Mechanical Assembly for Downhole Device App 20190257154 - Copold; Derek ;   et al. | 2019-08-22 |
Placement of stabilizers, standoffs, and rollers on a downhole tool string Grant 10,125,545 - Hsu , et al. November 13, 2 | 2018-11-13 |
Placement of Stabilizers, Standoffs, and Rollers on a Downhole Tool String App 20170175490 - Hsu; Kai ;   et al. | 2017-06-22 |
Shaped Standoff App 20170114595 - Lan; Weiming ;   et al. | 2017-04-27 |
Downhole Roller App 20170067299 - Copold; Derek | 2017-03-09 |
Downhole tool with roller screw assembly Grant 8,910,720 - Aguirre , et al. December 16, 2 | 2014-12-16 |
Grip enhanced tractoring Grant 8,602,115 - Aguirre , et al. December 10, 2 | 2013-12-10 |
Downhole Tool Roller Device With Cylindrical Bearing Mechanism App 20130248208 - Copold; Derek ;   et al. | 2013-09-26 |
Downhole Tool With Roller Screw Assembly App 20120168176 - Aguirre; Franz ;   et al. | 2012-07-05 |
Grip Enhanced Tractoring App 20110127046 - Aguirre; Franz ;   et al. | 2011-06-02 |
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