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Patent applications and USPTO patent grants for Zhang; Qiangxing.The latest application filed is for "acoustic emission test equipment and analysis technology for rock breaking".
Patent | Date |
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Tempo-spatial evolution test system for rock breaking in deep and complex environment Grant 11,415,557 - Liu , et al. August 16, 2 | 2022-08-16 |
Acoustic emission test equipment and analysis technology for rock breaking Grant 11,280,762 - Xu , et al. March 22, 2 | 2022-03-22 |
Rock mechanics experiment system for simulating deep-underground environment Grant 10,801,934 - Liu , et al. October 13, 2 | 2020-10-13 |
Acoustic Emission Test Equipment And Analysis Technology For Rock Breaking App 20200232950 - XU; Huining ;   et al. | 2020-07-23 |
Tempo-spatial Evolution Test System For Rock Breaking In Deep And Complex Environment App 20200217821 - LIU; Jianfeng ;   et al. | 2020-07-09 |
Rock Mechanics Experiment System For Simulating Deep-underground Environment App 20180340874 - Liu; Jianfeng ;   et al. | 2018-11-29 |
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