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For the Inventor, By the Inventor

Shandong, China

Crrc Qingdao Sifang Co., Ltd.


USPTO Granted Patents = 92



Forward Citations = 17

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311 inventors (with patents filed for the assignee):

goldMedal Sansan Ding (19 out of 19 patents)

silverMedal Jianying Liang (13 out of 13 patents)

bronzeMedal Xiaojun Deng (12 out of 13 patents)

4.  Shaoqing Liu (12 out of 12 patents)

5.  Honglei Tian (10 out of 10 patents)

6.  Donghua Wu (10 out of 11 patents)

7.  Aiqin Tian (9 out of 9 patents)

8.  Haiyang Yu (8 out of 8 patents)

9.  Fujie Jiang (8 out of 9 patents)

10.  Peng Lin (7 out of 22 patents)

11.  Werner Hufenbach (7 out of 46 patents)

12.  Andreas Ulbricht (7 out of 7 patents)

13.  Lijun Ma (7 out of 8 patents)

14.  Pingyu Zhou (7 out of 7 patents)

15.  Jinghai Jiao (7 out of 7 patents)


Core Competencies:
Maglev Train
Railway Vehicle
Bogie Framework
Active Control Systems
Composite Materials
Energy Absorption
Electromagnetic Shielding
Detection Systems
Suspension Systems
Crash Systems
Control Methods
Interior Structures

92 patents:

1. 12479480 - Tilting system and tilting control method for railway vehicle and railway vehicle (2025-11-25),
2. 12358539 - Linear motor for maglev train, and maglev train (2025-07-15),
3. 12358378 - Integrated electromagnet and maglev train (2025-07-15),
4. 12337884 - Positioning system and method for maglev train (2025-06-24),
5. 12319322 - Bogie framework of rail vehicle and bogie (2025-06-03),
6. 12168465 - Gearbox for rail vehicle, bogie for rail vehicle and rail vehicle (2024-12-17),
7. 12163863 - Detection system for suspension system of maglev train (2024-12-10),
8. 12145635 - Seat mounting structure and train having same (2024-11-19),
9. 12104424 - Logic intelligent control system of train door based on intelligent control units (2024-10-01),
10. 12084815 - Switch for track of maglev train (2024-09-10),
11. 12037031 - Train network control system including redundant network structure, method and device and train (2024-07-16),
12. 12023977 - Semi-active anti-yaw damper, damping system and vehicle (2024-07-02),
13. 12017539 - Voltage control method and apparatus, system, and maglev train (2024-06-25),
14. 11982589 - Magnetic levitation test system and electromagnet test method (2024-05-14),
15. 11964443 - Method for connecting a connection piece to a u-shaped ring anchor for a head module for rail vehicles (2024-04-23),
CRRC Qingdao Sifang Co., Ltd. is a subsidiary of CRRC Corporation Limited, a leading provider of railway transportation equipment and solutions worldwide. With a rich history of over 100 years, CRRC Qingdao Sifang specializes in the design, manufacturing, and maintenance of high-speed trains, urban rail transit vehicles, and other rolling stock. The company is committed to technological innovation, safety, and environmental sustainability, contributing to the development of efficient and sustainable transportation systems globally.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Jan 6 2026

92 Patents

#5 in Shandong

#331 in China

#8,134 in the World

...
Shandong, China

Crrc Qingdao Sifang Co., Ltd.

Forward Citations = 17

311 inventors:

goldMedal Sansan Ding (19 out of 19 patents)

silverMedal Jianying Liang (13 out of 13 patents)

bronzeMedal Xiaojun Deng (12 out of 13 patents)

4.  Shaoqing Liu (12 out of 12 patents)

5.  Honglei Tian (10 out of 10 patents)

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