CHINA RAILWAY ENGINEERING EQUIPMENT GROUP CO., LTD.

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Zhengzhou City, Henan, CN

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Patents Grantslast 30 patents

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

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Patents Applicationslast 30 patents

Information 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
Information 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
Information 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
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

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Trademarklast 30 trademarks

Information 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
Information 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