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Drilling Research Institute of China National Petroleum Company

USPTO Granted Patents = 2

Forward Citations = 0

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8 inventors (with patents filed for the assignee):

Wei Liu (2 out of 381 patents)

Kai Wang (2 out of 78 patents)

Lin Shi (2 out of 5 patents)

4. Yingcao Zhou (2 out of 2 patents)

5. Xiaoqiang Zhai (2 out of 2 patents)

6. Boqi Zhou (2 out of 2 patents)

7. Ying Wang (1 out of 171 patents)

8. Qingfeng Guo (1 out of 1 patent)

2 patents: Sort by Forward Citations

1. 10408042 - Methods of well trajectory and drilling optimized control for fracture-vuggy carbonate formation (2019-09-10),

2. 9759026 - Wellbore pressure correction method (2017-09-12),

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USPTO Data Jan 1 1976 - Dec 23 2025

2 Patents

#765 in Beijing

#9,995 in China

Drilling Research Institute of China National Petroleum Company

Forward Citations = 0

8 inventors:

Wei Liu (2 out of 381 patents)

Kai Wang (2 out of 78 patents)

Lin Shi (2 out of 5 patents)

4. Yingcao Zhou (2 out of 2 patents)

5. Xiaoqiang Zhai (2 out of 2 patents)

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