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Patent applications and USPTO patent grants for Li; Sanguo.The latest application filed is for "resistivity measurement while drilling device and method".
Patent | Date |
---|---|
Resistivity measurement while drilling device and method Grant 10,571,596 - Zeng , et al. Feb | 2020-02-25 |
Resistivity Measurement While Drilling Device And Method App 20180045847 - ZENG; Yijin ;   et al. | 2018-02-15 |
Data transmission system and method for transmission of downhole measurement-while-drilling data to ground Grant 9,739,141 - Zeng , et al. August 22, 2 | 2017-08-22 |
Data Transmission System and Method for Transmission of Downhole Measurement-While-Drilling Data to Ground App 20160115783 - Zeng; Yijin ;   et al. | 2016-04-28 |
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