For the Inventor, By the Inventor

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China State Railway Group Co., Ltd.

USPTO Granted Patents = 2

Forward Citations = 0

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7 inventors (with patents filed for the assignee):

Qingwei Li (2 out of 2 patents)

Lijie Du (2 out of 2 patents)

Yalei Yang (2 out of 2 patents)

4. Siming Tian (1 out of 1 patent)

5. Yong Zhao (1 out of 1 patent)

6. Xun Luo (1 out of 2 patents)

7. Guangchun Xu (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 12163826 - Method for identifying vibration magnitude of tunnel boring machine (TBM) main beam using geological feature parameter and tunneling feature parameter constructed based on TBM tunneling parameters (2024-12-10),

2. 11808152 - Method for real-time strength estimation, grading, and early warning of rock mass in tunnel boring machine (TBM) tunneling (2023-11-07),

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USPTO Data Jan 1 1976 - Dec 23 2025

2 Patents

#765 in Beijing

#9,995 in China

China State Railway Group Co., Ltd.

Forward Citations = 0

7 inventors:

Qingwei Li (2 out of 2 patents)

Lijie Du (2 out of 2 patents)

Yalei Yang (2 out of 2 patents)

4. Siming Tian (1 out of 1 patent)

5. Yong Zhao (1 out of 1 patent)

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