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China Enfi Engineering Corporation

USPTO Granted Patents = 12

% Expired Patents = 16.7

EPO Patents = 9

Forward Citations = 6

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48 inventors (with patents filed for the assignee):

Zhenmin Zhang (6 out of 6 patents)

Dong Li (4 out of 133 patents)

Kefei Cao (3 out of 3 patents)

4. Tao Yang (2 out of 68 patents)

5. Cheng Liu (2 out of 34 patents)

6. Dawei Cui (2 out of 2 patents)

7. Chuangu Wu (2 out of 2 patents)

8. Shuangjie Feng (2 out of 2 patents)

9. Liqiong Hu (2 out of 3 patents)

10. Bo Qin (2 out of 9 patents)

11. Xiaomei Feng (2 out of 2 patents)

12. Jin Li (2 out of 2 patents)

13. Guangming Li (2 out of 2 patents)

14. Jiacai Wang (2 out of 2 patents)

15. Jian Zou (2 out of 2 patents)

12 patents: Sort by Forward Citations

1. 12221722 - Melt electrospinning device and method (2025-02-11),

2. 11773467 - Method and system for processing rare earth concentrate ore (2023-10-03),

3. 11578385 - Device for continuously decomposing rare earth concentrate ore (2023-02-14),

4. 11511250 - Method and apparatus for preparing composite (2022-11-29),

5. 11047785 - System for testing rheological behavior of slurry (2021-06-29),

6. 11021772 - Method and device for removing iron in iron-containing solution in hydrometallurgy (2021-06-01),

7. 10443112 - Fuming furnace with lead collecting and discharging function (2019-10-15),

8. 10415883 - Refractory protection layer for metallurgical furnace (2019-09-17),

9. 10260815 - Lance and multi-fluid lance device equipped with the same (2019-04-16),

10. 10113800 - Lance (2018-10-30),

11. 8784744 - Device making phosphorus by thermal process (2014-07-22),

12. 8741226 - Reduction-oxidation furnace for making phosphorus by thermal process (2014-06-03),

China Enfi Engineering Corporation is a leading engineering company in China, specializing in the design and construction of industrial and infrastructure projects. With a strong team of experienced professionals, Enfi provides comprehensive services in areas such as mining, metallurgy, power, environmental protection, and urban development.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Sep 22 2026

12 Patents

#243 in Beijing

#2,339 in China

#48,055 in the World

China Enfi Engineering Corporation

Forward Citations = 6

48 inventors:

Zhenmin Zhang (6 out of 6 patents)

Dong Li (4 out of 133 patents)

Kefei Cao (3 out of 3 patents)

4. Tao Yang (2 out of 68 patents)

5. Cheng Liu (2 out of 34 patents)

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