SHI LIU

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Patents Grantslast 30 patents

Information Patent Grant
Draft gear, coupler and draft gear and railway train
- Patent number 11,498,596
- Issue date Nov 15, 2022
- CRRC QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO., LTD.
- Huaping Yang
- B61 - RAILWAYS
Information Patent Grant
Balancing apparatus for a transition coupler
- Patent number 9,545,934
- Issue date Jan 17, 2017
- CRRC QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO., LTD.
- Hui Liu
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
DRAFT GEAR, COUPLER AND DRAFT GEAR AND RAILWAY TRAIN
- Publication number 20220126891
- Publication date Apr 28, 2022
- CRRC QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO., LTD.
- HUAPING YANG
- B61 - RAILWAYS
Information Patent Application
BALANCING APPARATUS FOR A TRANSITION COUPLER
- Publication number 20160121911
- Publication date May 5, 2016
- QINGDAO SIFANG ROLLING STOCK RESEARCH INSTITUTE CO., LTD.
- HUI LIU
- B61 - RAILWAYS