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Crrc Qiqihar Rolling Stock Co., Ltd.

USPTO Granted Patents = 10

CIPO Patents = 1

EPO Patents = 11

Trademarks = 1

Forward Citations = 1

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48 inventors (with patents filed for the assignee):

Tianjun Zhao (3 out of 5 patents)

Changchun Wang (3 out of 3 patents)

Qingmin Meng (3 out of 7 patents)

4. Lei Yu (2 out of 27 patents)

5. Shifeng Xu (2 out of 6 patents)

6. Zhenguo Wu (2 out of 2 patents)

7. Xiaolong Wang (2 out of 3 patents)

8. Yong Fu (2 out of 4 patents)

9. Haibin Hu (2 out of 7 patents)

10. Yingjun Cui (2 out of 5 patents)

11. Pengdi Jin (2 out of 2 patents)

12. Yan Wang (2 out of 4 patents)

13. Li Yin (1 out of 18 patents)

14. Zhong Hua Zhang (1 out of 2 patents)

15. Xinqiang Liu (1 out of 2 patents)

10 patents: Sort by Forward Citations

1. 12252061 - Container locking device and piggyback transport vehicle (2025-03-18),

2. 11912316 - Vehicle coupler, coupler tongue and coupler body (2024-02-27),

3. 11560161 - Railway vehicle, coupler, and coupler body thereof (2023-01-24),

4. 10710613 - Railway freight car bogie (2020-07-14),

5. 10689011 - Wagon and vehicle body assembly thereof (2020-06-23),

6. 10569791 - Railway vehicle and joint connector thereof (2020-02-25),

7. 10569789 - Railway wagon for transporting trucks and method for loading and unloading truck (2020-02-25),

8. 10352083 - Compartment and bottom door thereof (2019-07-16),

9. 10086851 - Bogie and axle box suspension positioning device thereof (2018-10-02),

10. 9707981 - Car-coupler buffer and rail way car (2017-07-18),

CRRC Qiqihar Rolling Stock Co., Ltd. is a subsidiary of CRRC Corporation Limited, specializing in the design, manufacture, and maintenance of rolling stock and related components. The company is a leading provider of railway transportation solutions, serving customers both in China and abroad.

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USPTO Data Jan 1 1976 - Dec 23 2025

10 Patents

#1 in Qiqihar

#2,465 in China

#54,287 in the World

Crrc Qiqihar Rolling Stock Co., Ltd.

Forward Citations = 1

48 inventors:

Tianjun Zhao (3 out of 5 patents)

Changchun Wang (3 out of 3 patents)

Qingmin Meng (3 out of 7 patents)

4. Lei Yu (2 out of 27 patents)

5. Shifeng Xu (2 out of 6 patents)

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