CHINA RAILWAY 18 BUREAU GROUP CO., LTD.

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Tianjin, CN

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Patents Grantslast 30 patents

Information Patent Grant
Piston-type explosive loading and blasting structure and method for...
- Patent number 11,988,494
- Issue date May 21, 2024
- CHINA RAILWAY 18 BUREAU GROUP CO. LTD.
- Xin Zhang
- F42 - AMMUNITION BLASTING
Information Patent Grant
Reinforcement system at railway tunnel section passing through kars...
- Patent number 11,686,198
- Issue date Jun 27, 2023
- CHINA RAILWAY 18 BUREAU GROUP CO. LTD.
- Xin Zhang
- E21 - EARTH DRILLING MINING
Information Patent Grant
Bailey support system applied to cross protection of complex pipes...
- Patent number 11,473,262
- Issue date Oct 18, 2022
- CHINA RAILWAY 18 BUREAU GROUP CO., LTD.
- Xin Zhang
- E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING

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Patents Applicationslast 30 patents

Information Patent Application
BLAST HOLE ARRANGEMENT STRUCTURE USED FOR BLASTING FOR RHEOLOGICAL...
- Publication number 20240102385
- Publication date Mar 28, 2024
- CHINA RAILWAY 18 BUREAU GROUP CO. LTD.
- Xin ZHANG
- F42 - AMMUNITION BLASTING
Information Patent Application
PISTON-TYPE EXPLOSIVE LOADING AND BLASTING STRUCTURE AND METHOD FOR...
- Publication number 20240068790
- Publication date Feb 29, 2024
- CHINA RAILWAY 18 BUREAU GROUP CO. LTD.
- Xin ZHANG
- F42 - AMMUNITION BLASTING
Information Patent Application
REINFORCEMENT SYSTEM AT RAILWAY TUNNEL SECTION PASSING THROUGH KARS...
- Publication number 20230068068
- Publication date Mar 2, 2023
- CHINA RAILWAY 18 BUREAU GROUP CO. LTD.
- Xin ZHANG
- E21 - EARTH DRILLING MINING
Information Patent Application
BAILEY SUPPORT SYSTEM APPLIED TO CROSS PROTECTION OF COMPLEX PIPES...
- Publication number 20210010222
- Publication date Jan 14, 2021
- CHINA RAILWAY 18 BUREAU GROUP CO., LTD.
- Xin Zhang
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...