Jianqiang GUO

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Qingdao, Shandong, CN

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Patents Grantslast 30 patents

Information Patent Grant
Position-limiting device
- Patent number 9,809,147
- Issue date Nov 7, 2017
- CRRC QINGDAO SIFANG CO., LTD.
- Jianqiang Guo
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Securing system for freight wagon and freight wagon
- Patent number 9,758,180
- Issue date Sep 12, 2017
- CRRC QINGDAO SIFANG CO., LTD.
- Zhaojin Sun
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
POSITION-LIMITING DEVICE
- Publication number 20170080845
- Publication date Mar 23, 2017
- CRRC QINGDAO SIFANG CO., LTD.
- Jianqiang GUO
- B60 - VEHICLES IN GENERAL
Information Patent Application
SECURING SYSTEM FOR FREIGHT WAGON AND FREIGHT WAGON
- Publication number 20170050649
- Publication date Feb 23, 2017
- CRRC QINGDAO SIFANG CO., LTD.
- Zhaojin SUN
- B61 - RAILWAYS