Yonghua FENG

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Qingdao, Shandong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Rail vehicle and bogie
- Patent number 11,827,251
- Issue date Nov 28, 2023
- CRRC Qingdao Sifang Co., Ltd.
- Yonghua Feng
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
ANTI-SIDE-ROLLING DAMPING VEHICLE-END DEVICE, AND RAIL VEHICLE AND...
- Publication number 20240140500
- Publication date May 2, 2024
- CRRC QINGDAO SIFANG CO., LTD.
- Dongxiao YANG
- B61 - RAILWAYS
Information Patent Application
RAIL VEHICLE AND BOGIE
- Publication number 20230132924
- Publication date May 4, 2023
- CRRC QINGDAO SIFANG CO., LTD.
- Yonghua FENG
- B61 - RAILWAYS