Haizhi YU

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Qingdao, CN

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Patents Grantslast 30 patents

Information Patent Grant
Vehicle end skeleton structure and rail vehicle having same
- Patent number 11,142,222
- Issue date Oct 12, 2021
- CRRC QINGDAO SIFANG CO., LTD.
- Zhanxuan Guo
- B61 - RAILWAYS
Information Patent Grant
Rail vehicle
- Patent number 11,130,506
- Issue date Sep 28, 2021
- CRRC QINGDAO SIFANG CO., LTD.
- Haiyang Yu
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
Rail vehicle
- Publication number 20190168782
- Publication date Jun 6, 2019
- CRRC QINGDAO SIFANG CO., LTD.
- Haiyang YU
- B61 - RAILWAYS
Information Patent Application
Vehicle end skeleton structure and rail vehicle having same
- Publication number 20190084589
- Publication date Mar 21, 2019
- CRRC QINGDAO SIFANG CO., LTD.
- Zhanxuan GUO
- B61 - RAILWAYS