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Patent applications and USPTO patent grants for Zhang; Xi Wei.The latest application filed is for "cutter head for microwave presplitting type hard-rock tunnel boring machine".
Patent | Date |
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Cutter head for microwave presplitting type hard-rock tunnel boring machine Grant 10,428,654 - Feng , et al. October 1, 2 | 2019-10-01 |
Test apparatus and method for determining time-dependence failure under constant temperature through high pressure true triaxial loading for hard rock Grant 10,365,193 - Feng , et al. July 30, 2 | 2019-07-30 |
Low-frequency disturbance and high-speed impact type high-pressure true triaxial test apparatus and method Grant 10,324,014 - Feng , et al. | 2019-06-18 |
Cutter Head For Microwave Presplitting Type Hard-rock Tunnel Boring Machine App 20190040741 - FENG; Xia Ting ;   et al. | 2019-02-07 |
Test Apparatus And Method For Determining Time-dependence Failure Under Constant Temperature Through High Pressure True Triaxial Loading For Hard Rock App 20180313727 - FENG; Xia ting ;   et al. | 2018-11-01 |
Low-frequency Disturbance And High-speed Impact Type High-pressure True Triaxial Test Apparatus And Method App 20180275034 - FENG; Xia ting ;   et al. | 2018-09-27 |
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