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Dong Ying District, Dong Ying, Shandong, China

Sinopec Group, Shengli Petroleum Administration Transport Corporation

USPTO Granted Patents = 1

Forward Citations = 3

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5 inventors (with patents filed for the assignee):

Xinyi Gu (1 out of 1 patent)

Huanbo Zhou (1 out of 1 patent)

Yonghai Liu (1 out of 1 patent)

4. Zhisheng Tian (1 out of 2 patents)

5. Zhengyou Feng (1 out of 1 patent)

1 patent: Sort by Forward Citations

1. 8047821 - Ring rack oil pumping machine (2011-11-01),

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USPTO Data Jan 1 1976 - Dec 16 2025

1 Patents

#1 in Dong Ying District, Dong Ying, Shandong

#16,079 in China

Dong Ying District, Dong Ying, Shandong, China

Sinopec Group, Shengli Petroleum Administration Transport Corporation

Forward Citations = 3

5 inventors:

Xinyi Gu (1 out of 1 patent)

Huanbo Zhou (1 out of 1 patent)

Yonghai Liu (1 out of 1 patent)

4. Zhisheng Tian (1 out of 2 patents)

5. Zhengyou Feng (1 out of 1 patent)

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