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Oil and Gas Technology Research Institute, Petrochina Changqing Oilfield Company

USPTO Granted Patents = 3

EPO Patents = 1

Forward Citations = 2

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15 inventors (with patents filed for the assignee):

Guang Zhao (3 out of 24 patents)

Caili Dai (3 out of 27 patents)

Qing You (3 out of 17 patents)

4. Ping Yi (3 out of 3 patents)

5. Haien Yang (2 out of 3 patents)

6. Sen Wang (2 out of 6 patents)

7. Mingwei Zhao (1 out of 12 patents)

8. Jiaping Tao (1 out of 3 patents)

9. Yahui Lv (1 out of 5 patents)

10. Long He (1 out of 4 patents)

11. Yining Wu (1 out of 10 patents)

12. Hai'en Yang (1 out of 1 patent)

13. Lin Li (1 out of 6 patents)

14. Yuyang Li (1 out of 2 patents)

15. Xue Yao (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 10550318 - Skid-mounted dispersed particle gel production device, dispersed particle gel and preparation method and use thereof (2020-02-04),

2. 10414969 - Colloidal nano-graphite-strengthened bulk gel system for dispersed particle gel and composition thereof (2019-09-17),

3. 10294409 - Modified graphite particle system for strengthening polymer/binary/ternary composite oil displacement system and preparation and application thereof (2019-05-21),

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USPTO Data Jan 1 1976 - Dec 30 2025

3 Patents

#33 in Xi'an

#7,245 in China

Oil and Gas Technology Research Institute, Petrochina Changqing Oilfield Company

Forward Citations = 2

15 inventors:

Guang Zhao (3 out of 24 patents)

Caili Dai (3 out of 27 patents)

Qing You (3 out of 17 patents)

4. Ping Yi (3 out of 3 patents)

5. Haien Yang (2 out of 3 patents)

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