Liangwei Zhang

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Wuhan, HB, CN

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Patents Grantslast 30 patents

Information Patent Grant
Variable stiffness positioning device for railway vehicle bogie axl...
- Patent number 9,919,718
- Issue date Mar 20, 2018
- CRRC Yangtze Corporation Limited
- Zhixiong Yan
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
Variable Stiffness Positioning Device for Railway Vehicle Bogie Axl...
- Publication number 20170129509
- Publication date May 11, 2017
- Zhixiong Yan
- B61 - RAILWAYS
Information Patent Application
Two-Stage Stiffness Type Elastomer Combined Device
- Publication number 20160146284
- Publication date May 26, 2016
- CSR YANGTYZE CO., LTD.
- Zhixiong Yan
- B61 - RAILWAYS