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Patent applications and USPTO patent grants for Bethscheider; Brian John.The latest application filed is for "packer system having lockable mechanism".
Patent | Date |
---|---|
Packer system having lockable mechanism Grant 10,808,493 - Du , et al. October 20, 2 | 2020-10-20 |
Opposing thread screw safety joint Grant 10,240,403 - Gratzinger , et al. | 2019-03-26 |
Packer System Having Lockable Mechanism App 20180106127 - Du; Quangen ;   et al. | 2018-04-19 |
Opposing Thread Screw Safety Joint App 20160305196 - Gratzinger; Michael Joseph ;   et al. | 2016-10-20 |
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