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CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO., LTD.
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Zhengzhou City, Henan, CN
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Patents Grants
last 30 patents
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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
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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
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Patents Applications
last 30 patents
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Patent Application
Mixing and Guniting Device of New Type for TBM
Publication number
20200003056
Publication date
Jan 2, 2020
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO., LTD.
Ying ZHU
E21 - EARTH DRILLING MINING
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Patent Application
Center-pillared Full-Face Shaft Drilling Machine
Publication number
20160369629
Publication date
Dec 22, 2016
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO., LTD.
Hua Zhao
E21 - EARTH DRILLING MINING
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Patent Application
Vertical Shaft Drilling Rig Using Novel Drilling Method
Publication number
20160369566
Publication date
Dec 22, 2016
CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO., LTD.
Jianbin LI
E21 - EARTH DRILLING MINING
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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
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last 30 trademarks
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Trademark
87013684 - C CREG UNDERGROUND SOLUTIONS WIRTH W
Serial number
87013684
Filing date
Apr 26, 2016
China Railway Engineering Equipment Group CO., LTD.
7 - Machines and machine tools
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Trademark
87013774 - C CREG UNDERGROUND SOLUTIONS WIRTH W
Serial number
87013774
Filing date
Apr 26, 2016
China Railway Engineering Equipment Group CO., LTD.
37 - Building construction