Hongjiang XU

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Tangshan, CN

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Patents Grantslast 30 patents

Information Patent Grant
Ground rail transfer device and gauge changing system
- Patent number 12,129,603
- Issue date Oct 29, 2024
- CRRC TANGSHAN CO., LTD.
- Xiaojun Zhang
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Bogie and rail vehicle
- Patent number 11,590,991
- Issue date Feb 28, 2023
- CRRC TANGSHAN CO., LTD.
- Lixin Zhang
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
GROUND RAIL TRANSFER DEVICE AND GAUGE CHANGING SYSTEM
- Publication number 20210395952
- Publication date Dec 23, 2021
- CRRC TANGSHAN CO., LTD.
- Xiaojun ZHANG
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Application
BOGIE AND RAIL VEHICLE
- Publication number 20210237782
- Publication date Aug 5, 2021
- CRRC TANGSHAN CO., LTD.
- Lixin ZHANG
- B61 - RAILWAYS