Wenqiang QU

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Qingdao, Shangdong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Rail vehicle bogie draw-gear
- Patent number 10,137,910
- Issue date Nov 27, 2018
- CRRC QINGDAO SIFANG CO., LTD.
- Dalian Yu
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
SYSTEM AND METHOD FOR SUPPRESSING THE SERPENTINE INSTABILITY OF RAI...
- Publication number 20190070976
- Publication date Mar 7, 2019
- CCRC Qingdao Sifang Co., Ltd.
- Shuangxi Chen
- B60 - VEHICLES IN GENERAL
Information Patent Application
RAIL VEHICLE BOGIE DRAW-GEAR
- Publication number 20160332642
- Publication date Nov 17, 2016
- CRRC QINGDAO SIFANG CO., LTD.
- Dalian YU
- B61 - RAILWAYS