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Welead Infrastructure Engineering Technology (zhengzhou), Ltd.

USPTO Granted Patents = 15

Forward Citations = 1

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20 inventors (with patents filed for the assignee):

Hongyuan Fang (15 out of 21 patents)

Peng Zhao (15 out of 22 patents)

Yanhui Pan (14 out of 19 patents)

4. Fuming Wang (13 out of 24 patents)

5. Bin Li (8 out of 14 patents)

6. Hang He (7 out of 7 patents)

7. Chengchao Guo (5 out of 10 patents)

8. Xianfeng Zhao (3 out of 8 patents)

9. Yingli Wang (2 out of 4 patents)

10. Guobin Qiao (2 out of 3 patents)

11. Kejie Zhai (1 out of 1 patent)

12. Zhihui Jia (1 out of 1 patent)

13. Hui Liu (1 out of 3 patents)

14. Jianwei Lei (1 out of 2 patents)

15. Zongsheng Lu (1 out of 1 patent)

15 patents: Sort by Forward Citations

1. 11970564 - Structural flame retardant high strength low exothermic polymer grouting material for consolidating (2024-04-30),

2. 11708933 - Pipeline radar and television inspection robot (2023-07-25),

3. 11585467 - Trenchless methods for forming curved hole channel with steel sleeve and pipeline lifting (2023-02-21),

4. 11473713 - Trenchless integrative repair method for concrete drainage pipeline with cracking, corrosion and subsidence (2022-10-18),

5. 11346487 - Support tool and back-pressure grouting device for leakage repair of inspection well and repair method thereof (2022-05-31),

6. 11319690 - Assembled recyclable rectangular working well with preset detachable door opening and construction method thereof (2022-05-03),

7. 11274784 - In-service repair method combining externally bonded pre-stressed FRP and polymer grouting for PCCP with broken wire (2022-03-15),

8. 11231139 - Detecting and repairing method for external diseases of buried drainage pipeline (2022-01-25),

9. 11149400 - Thin-slotting lifting synchronous grouting device and its usage method (2021-10-19),

10. 11149399 - Track-type jet grouting integrated system (2021-10-19),

11. 11143027 - Rectangular working well with preset pipe jacking hole and sliding back wall in water-rich stratum and construction method thereof (2021-10-12),

12. 11085166 - Composite slotting equipment combined static pressure and vibration of polymer anti-seepage wall and using method thereof (2021-08-10),

13. 11079057 - Trenchless rehabilitation device for disconnects on large-diameter concrete drainage pipe and method thereof (2021-08-03),

14. 11002398 - Trenchless rehabilitation system for deformation of large diameter HDPE pipelines and method thereof (2021-05-11),

15. 10907761 - In-service and trenchless repair method for disconnection of drainage pipeline (2021-02-02),

WELEAD Infrastructure Engineering Technology (Zhengzhou), Ltd. is a leading company specializing in providing advanced infrastructure engineering solutions and technology. With a team of highly skilled professionals, we offer a wide range of services including civil engineering, transportation engineering, urban planning, and geotechnical engineering. Our aim is to deliver innovative and sustainable solutions that meet the needs of our clients and contribute to the development of infrastructure projects. Visit our website to learn more about our expertise and projects.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

15 Patents

#3 in Henan

#1,708 in China

#38,722 in the World

Welead Infrastructure Engineering Technology (zhengzhou), Ltd.

Forward Citations = 1

20 inventors:

Hongyuan Fang (15 out of 21 patents)

Peng Zhao (15 out of 22 patents)

Yanhui Pan (14 out of 19 patents)

4. Fuming Wang (13 out of 24 patents)

5. Bin Li (8 out of 14 patents)

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