For the Inventor, By the Inventor

Enter assignee name

Yantai Jereh Oilfield Services Group Co., Ltd.

USPTO Granted Patents = 5

CIPO Patents = 4

Trademarks = 8

Forward Citations = 310

Loading Chart...

Loading Chart...

14 inventors (with patents filed for the assignee):

Dong Liu (2 out of 9 patents)

Qingfeng Yu (2 out of 3 patents)

Jilei Fang (2 out of 2 patents)

4. Xinmeng Wang (2 out of 2 patents)

5. Zongwen Wang (2 out of 2 patents)

6. Hailong Li (1 out of 3 patents)

7. Tao Li (1 out of 2 patents)

8. Feng Wang (1 out of 22 patents)

9. Minghua Sun (1 out of 1 patent)

10. Lianpan Duan (1 out of 1 patent)

11. Junlei Yao (1 out of 1 patent)

12. Dong Liu (0 patent)

5 patents: Sort by Forward Citations

1. 12475426 - Method for generating portrait of mechanical equipment (2025-11-18),

2. 12215582 - Fracturing pump spacer frame (2025-02-04),

3. 11886178 - Fault diagnosis method, method for building fault diagnosis model, equipment, device and medium (2024-01-30),

4. 9617808 - Continuous oil pipe clamp mechanism (2017-04-11),

5. 9493997 - Floating clamping device for injection head of continuous oil pipe (2016-11-15),

Company Badge

USPTO Data Jan 1 1976 - Dec 9 2025

5 Patents

#9 in Yantai

#4,548 in China

Yantai Jereh Oilfield Services Group Co., Ltd.

Forward Citations = 310

14 inventors:

Dong Liu (2 out of 9 patents)

Qingfeng Yu (2 out of 3 patents)

Jilei Fang (2 out of 2 patents)

4. Xinmeng Wang (2 out of 2 patents)

5. Zongwen Wang (2 out of 2 patents)

Please report any incorrect information to support@idiyas.com

Loading…