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Yulian He
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Zhengzhou, CN
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Patents Grants
last 30 patents
Information
Patent Grant
Compound-type tunneling shield
Patent number
10,077,657
Issue date
Sep 18, 2018
Yulian He
E21 - EARTH DRILLING MINING
Information
Patent Grant
Method for preventing shield casing jamming due to too large fricti...
Patent number
9,016,983
Issue date
Apr 28, 2015
China Railway Engineering Equipment Group Co., Ltd.
Jianbin Li
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Grant
Earth pressure balance shield machine without cutter disk
Patent number
9,016,801
Issue date
Apr 28, 2015
China Railway Engineering Equipment Group Co., Ltd.
Jianbin Li
E21 - EARTH DRILLING MINING
Information
Patent Grant
Cutting device with function of changing diameter in small range fo...
Patent number
8,696,068
Issue date
Apr 15, 2014
China Rall Way Tunneling Equipment Co., Ltd.
Jianbin Li
E21 - EARTH DRILLING MINING
Patents Applications
last 30 patents
Information
Patent Application
Compound-Type Tunnelling Shield
Publication number
20160194957
Publication date
Jul 7, 2016
CHINA RAIL WAY ENGINEERING EQUIPMENT GROUP CO., LTD.
Yulian HE
E21 - EARTH DRILLING MINING
Information
Patent Application
Earth Pressure Balance Shield Machine without Cutter Disk
Publication number
20150042146
Publication date
Feb 12, 2015
China Railway Engineering Equipment Group Co. Ltd.
Jianbin Li
E21 - EARTH DRILLING MINING
Information
Patent Application
Method for Preventing Shield Casing Catching Due to Too Large Frict...
Publication number
20140079485
Publication date
Mar 20, 2014
China Railway Tunneling Equipment Co., Ltd.
Jianbin Li
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
Information
Patent Application
Cutting Device with Function of Changing Diameter in Small Range fo...
Publication number
20120248848
Publication date
Oct 4, 2012
CHINA RALL WAY TUNNELING EQUIPMENT CO., LTD.
Jianbin Li
E21 - EARTH DRILLING MINING