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Patent applications and USPTO patent grants for Tan; Shunhui.The latest application filed is for "method for preventing shield casing catching due to too large frictional resistance in earth pressure balance shield machine".
Patent | Date |
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Method for preventing shield casing jamming due to too large frictional resistance in earth pressure balance shield machine Grant 9,016,983 - Li , et al. April 28, 2 | 2015-04-28 |
Method for Preventing Shield Casing Catching Due to Too Large Frictional Resistance in Earth Pressure Balance Shield Machine App 20140079485 - Li; Jianbin ;   et al. | 2014-03-20 |
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