QINGGANG ZHANG

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HEBEI, CN

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Patents Grantslast 30 patents

Information Patent Grant
Train compartment brake control method, train compartment, and train
- Patent number 11,511,712
- Issue date Nov 29, 2022
- CRRC TANGSHAN CO., LTD.
- Shujun Chen
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Obstacle removing and energy absorbing device and leading car of mo...
- Patent number 9,409,580
- Issue date Aug 9, 2016
- Tangshan Railway Vehicle Co., Ltd.
- Letian Fan
- B61 - RAILWAYS

Patents Applicationslast 30 patents

Information Patent Application
TRAIN COMPARTMENT BRAKE CONTROL METHOD, TRAIN COMPARTMENT, AND TRAIN
- Publication number 20200164843
- Publication date May 28, 2020
- CRRC TANGSHAN CO., LTD.
- Shujun CHEN
- B60 - VEHICLES IN GENERAL
Information Patent Application
OBSTACLE REMOVING AND ENERGY ABSORBING DEVICE AND LEADING CAR OF MO...
- Publication number 20140290528
- Publication date Oct 2, 2014
- LETIAN FAN
- B61 - RAILWAYS
Information Patent Application
DRAG REDUCTION DEVICE BETWEEN CARRIAGES OF HIGH-SPEED MULTIPLE UNITS
- Publication number 20110253002
- Publication date Oct 20, 2011
- TANGSHAN RAILWAY VEHICLE CO., LTD.
- BANGCHENG SUN
- B61 - RAILWAYS